Communication

1678 relations: "Sinopliosaurus" fusuiensis, Abydosaurus, Abyssosaurus, Acamptonectes, Acanthohoplites, Acanthomorpha, Acinacodus, Acostasaurus, Acristatherium, Acrocanthosaurus, Acroteuthis, Adocus, Adocus beatus, Aegirosaurus, Aegocrioceras, Aepisaurus, Afromimus, Agaricomycetes, Ageroolithus, Agulhas Plateau, Agustinia, Akidolestes, Al Shaheen Oil Field, Alamyshik Formation, Alan J. Charig, Alavaraphidia, Albacora-Leste oil field, Albalophosaurus, Albian, Albionbaatar, Albionbaataridae, Alepisauriformes, Algoasaurus, Allaru Formation, Alligator gar, Allodaposuchus, Allosauroidea, Altanulia, Altirhinus, Altispinax, Altusmirus, Alxasaurus, Amarantoraphidia, Amargasaurus, Amargastegos, Amargasuchus, Amargatitanis, Amazonsaurus, Amber, Ambiortiformes, ..., Ambiortus, Americhelydia, Amiiformes, Anatosuchus, Anchiornithidae, Ancyloceratidae, Andean orogeny, Anderson County, Texas, Andreas Kornhuber, Anguimorpha, Anhanguera araripensis, Anhanguera piscator, Anhanguera robustus, Anhangueridae, Ankylosauridae, Ankylosaurinae, Ankylosphenodon, Anomodont, Anomotodon, Anoplosaurus, Anoualerpeton, Antenor Navarro Formation, Anteophthalmosuchus, Anthodon (reptile), Anticline, Antlers Formation, Anurognathidae, Aoufous Formation, Apateodus, Apatomerus, Apón Formation, Apricosiren, Apt, Vaucluse, Aptian, Apulia Carbonate Platform, Aquilops, Arabika Massif, Aragosaurus, Arapaimidae, Araripe manakin, Araripedactylus, Araripesaurus, Araripesuchus, Arcanosaurus, Archaeamphora, Archaeoceratops, Archaeopterodactyloidea, Archaeorhynchus, Archaeornithomimus, Archaeornithura, Archimyrmex, Archonta, Arcillas de Morella Formation, Argiles à Plicatules, Argiles Ostréennes, Arginbaatar, Aristosuchus, Arkansaurus, Armançon, Aroley Formation, Arowana, Arthurdactylus, Artoles Formation, Arundel Formation, Ascalaphidae, Ashdown Forest, Ashdown Formation, Asian arowana, Asiatosaurus, Asioryctitheria, Aspinoceras, Asterotrygon, Astrodon, Astrophocaudia, Athabascasaurus, Atlanticopristis, Atlascopcosaurus, Atokasaurus, Atoposauridae, Aubignosc, Aulacogen, Aulopiformes, Aureille, Auroraceratops, Ausktribosphenidae, Ausktribosphenos, Australochelys, Austrosaurus, Authon, Alpes-de-Haute-Provence, Avebrevicauda, Avgodectes, Avisauridae, Aymberedactylus, Ayoluengo oil field, Široki Brijeg, Baculina, Bahia, Ballans, Banguela, Barbosania, Barcinosuchus, Barilium, Barrême, Barremian, Barremitinae, Baryonyx, Basilochelys, Bauxite of Cornet, Bayin-Gobi Formation, Beardfish, Beattie Peaks Formation, Beaver Mines Formation, Bee, Beipiaognathus, Beipiaopterus, Beipiaosaurus, Beishanlong, Belemnotheutis, Belidae, Belinae, Beloniformes, Bennettazhia, Bermuda hotspot, Bernardodon, Bernissartia, Berriasian, Beryciformes, Bickford Formation, Bidentalia, Bighorn Mountains, Bird, Bird ichnology, Bishops (mammal), Blackborough End Pit, Blairmore Group, Blesa Formation, Bluesky Formation, Bluff Dale Sandstone, Bobdownsite, Bochianites, Bohaiornis, Bohaiornithidae, Bolivar Coastal Fields, Bolodon, Bolong, Bolter End Sand Pit, Boluochia, Borealopelta, Boreopteridae, Boreopterus, Boulder Creek Formation, Bowerchalke, BP Structure, Brachiosauridae, Brachiosaurus, Brachyopoidea, Brachytrachelopan, Brancasaurus, Brasileodactylus, Brillanceausuchus, Brontomerus, Buchan Oil Field, Buda Limestone, Buesaco-Aranda Fault, Bullhead Group, Bullichthys, Bungil Formation, Burro Canyon Formation, Cactus, Cadomin Formation, Calamosaurus, Calamospondylus, Calanguban, Calcaire à Spatangues, Calizas de La Huérgina Formation, Callawayasaurus, Callipurbeckia, Callobatrachus, Calpionella, Calpionellidae, Calpionellites darderi, Camarasauridae, Camarillas Formation, Camarillasaurus, Camarodonta, Camposipterus, Camptodontus (bird), Candidodon, Candidodontidae, Cantabroraphidia, Carcharhiniformes, Carcharodontosaurus, Caririsuchus, Carpathian Flysch Belt, Carsosaurus, Cascade Caverns, Cascoplecia, Casierius, Castellar Formation, Catfish, Cathayopterus, Cathayornis, Caudipteridae, Caudipteryx, Caulkicephalus, Caupedactylus, Caypullisaurus, Cearachelys, Cearadactylus, Cedar Mountain Formation, Cedarosaurus, Cedarpelta, Cedrorestes, Celtedens, Ceratopsia, Ceratosauridae, Cetarthrosaurus, Chalawan (genus), Changchengornis, Changchunsaurus, Changmaornis, Changyuraptor, Changzuiornis, Chanopsis, Chaoyang, Liaoning, Chaoyangia, Chaoyangopteridae, Chaoyangopterus, Checua, Chesapeake Bay impact crater, Chiayusaurus, Chiayusuchus, Chigutisauridae, Chilantaisaurus, Chimaerasuchidae, Chimaerasuchus, Chometokadmon, Chondrosteosaurus, Chongmingia, Chronoperates, Chuanqilong, Chubutemys, Chuhsiungichthys, Chulec Formation, Cifelliodon, Cimoliasaurus, Cimoliopterus, Cipactlichthys, Cixiidae, Clearwater Formation, Cloverly Formation, Clupeiformes, Coast Range Arc, Coeluridae, Coelurus, Collingwood, Queensland, Coloborhynchus, Coloborhynchus spielbergi, Coloniatherium, Comahuesuchidae, Componocancer, Compression fossil, Compsognathidae, Concavenator, Concornis, Confuciusornis, Confuciusornithidae, Confuciusornithiformes, Conglomerados de Caranguejeira, Copepod, Coptoclavidae, Corda Formation, Cordicephalus gracilis, Corpulentapus, Corriebaatar, Coxoplectoptera, Craspedodiscus (ammonite), Craterosaurus, Cratia, Crato Formation, Cratoavis, Cretaceogekko, Cretaceous, Crioceratites, Crossognathiformes, Crowsnest Formation, Cruralispennia, Crustacean larva, 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Formation, Kleiner Deister, Kollikodon, Koolasuchus, Kootenai Formation, Kootenay Group, Kopet Dag, Koreaceratops, Koreanosaurus (theropod), Koshisaurus, Kossmaticeras, Koum Formation, Koumpiodontosuchus, Krill, Kronosaurus, Krubera Cave, Kryoryctes, Kryptops, Kukufeldia, Kulceratops, Kunbarrasaurus, Kuwajima Formation, Kuwajimalla, Kyasuchus, La Herradura Formation, La Predrera de Rubies Lithographic, La Rioja (Spain), Lacusovagus, Lagenanectes, Lagenida, Lamiophanes schroeteri, Lancian, Lanzhousaurus, Laosaurus, Lapa oil field, Larachelus, Largirostrornis, Laurasiformes, Lavocatia, Lazarussuchus, Leaellynasaura, Leduc No. 1, Leefructus, Leighton Buzzard Light Railway, Leinkupal, Leninia, Lepidotes, Leptocleididae, Leptocleidus, Leptoconops amplificatus, Leptoconops antiquus, Leptoconops burmiticus, Leptoconops myanmaricus, Leptoconops nosopheris, Leptoconops rossi, Leptoconops zherikhini, Leptolepidae, Leptolepis, Lesser Himalayan Strata, Leyvachelys, Lhasa terrane, Liangtoutang Formation, Lianmuqin Formation, Liaobatrachus, Liaoceratops, Liaochelys, Liaoning, Liaoningopterus, Liaoningornis, Liaoningosaurus, Liaoningvenator, Liaoxiornis, Liaoxipterus, Liaoxisaurus, Liaoxitriton, Lias Group, Ligabueino, Ligabuesaurus, Liliales, Limaysaurus, Limnarchia, Linlongopterus, Linuparus, Lisboasaurus, List of African dinosaurs, List of ammonite genera, List of creatures in Primeval, List of flood basalt provinces, List of fossil sites, List of fossiliferous stratigraphic units in Alberta, List of fossiliferous stratigraphic units in British Columbia, List of Global Boundary Stratotype Sections and Points, List of ichthyosaur genera, List of North American dinosaurs, List of oil and gas fields of the North Sea, List of places of worship in Waverley (borough), List of plesiosaur genera, List of prehistoric octocoral genera, List of prehistoric starfish genera, List of pterosaur genera, List of pterosaur-bearing stratigraphic units, List of sarcopterygian genera, List of Sites of Special Scientific Interest in Bedfordshire, List of Sites of Special Scientific Interest in Buckinghamshire, List of Sites of Special Scientific Interest in Kent, List of Sites of Special Scientific Interest in Norfolk, List of Sites of Special Scientific Interest on the Isle of Wight, List of stratigraphic units with dinosaur trace fossils, List of stratigraphic units with few dinosaur genera, List of stratigraphic units with ornithischian tracks, List of thalattosuchian-bearing stratigraphic units, Lithographic limestone, Lithostrotia, Liubangosaurus, Liushusaurus, Lonchodectidae, Lonchodraco, Lonchognathosaurus, London Basin, Longchengornis, Longchengpterus, Longicrusavis, Longipterygidae, Longipteryx, Longirostravis, Longusunguis, Loon, Losillasaurus, Lower Greensand Group, Lower Khodzhaosmansk Formation, Loxaulax, Ludodactylus, Ludogorie, Luohandong Formation, Luoyanggia, Lura Formation, Lurdusaurus, Luscar Group, Lusitanisuchus, Lycoptera, Ma Butte Formation, 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Mégantic, Mont Rougemont, Mont Saint-Bruno, Mont Saint-Grégoire, Mont Saint-Hilaire, Mont Shefford, Mont Yamaska, Montanalestes, Monte Inici, Monteith Formation, Montirictus, Montsecosuchus, Morelladon, Morganucodonta, Morinosaurus, Morro Solar, Morro Solar Group, Mortoniceras, Mosasaur, Mount Bonnell, Mount Donbeh, Mount Ishikari, Mount Kolah Qazi, Mount Qaruneh, Mount Rebun, Mount Royal, Mount Rundle, Mount Shah Kuh, Mount Soffeh, Mountfield, East Sussex, Muir Seamount, Muiscasaurus, Multituberculata, Mushroom Rock State Park, Muttaburrasaurus, Myanmymar, Mycetophagites, Myctophiformes, Myrmecia (ant), Mythunga, Myxophaga, Nanantius, Nannosuchus, Nanshiungosaurus, Napan Formation, Nautilus, Necroraphidia, Nemesiidae, Nemicolopterus, Neobatrachia, Neochoristodera, Neocomian Sands, Neocomitidae, Neogastropoda, Neognathae, Neopholidophoropsis, Neorhombolepis, Neovenator, Neovenatoridae, Nesselberg, Neuropterida, Neusibatrachus, Neustosaurus, Nichollssaura, Nigersaurus, Nikanassin 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Sveltonectes, Symmetrodonta, Symmoriida, Synodus intermedius, Taganga, Tagarosuchus, Tahora Formation, Tambatitanis, Tangvayosaurus, Taohelong, Tapejaridae, Tapejaromorpha, Tapuiasaurus, Tarsophlebiidae, Tastavinsaurus, Tatankacephalus, Tataouinea, Taxonomy of Liliaceae, Tchoiria, Teffont Evias Quarry and Lane Cutting, Teinolophos, Teleosauridae, Temnospondyli, Tendaguru Formation, Tengrisaurus, Tenontosaurus, Tera Beds, Terlingua, Texas, Tethys Ocean, Tetragramma donaldtrumpi, Tetraodontiformes, Tetrapodophis, Texasetes, Thalassodromeus, Thalassodromidae, Tharrhias, Thecocoelurus, Thecospondylus, Theiophytalia, Therapsid, Theriosuchus, Therizinosaur, Therochelonia, Therosaurus, Thescelosaurinae, Thiaridae, Thoraciliacus, Thrips, Tianyuraptor, Tiaojishan Formation, Time range of Hexanchiformes species, Timeline of ankylosaur research, Timeline of egg fossil research, Timeline of pachycephalosaur research, Timeline of pterosaur research, Timeline of stegosaur research, Timeline of the development of tectonophysics (after 1952), Timimus, Tiouraren Formation, Tlayúa Formation, TNM 02067, Toolebuc Formation, Toxolophosaurus, Trachodon, Trematochampsidae, Tremp Formation, Tribosphenida, Triconodon, Trimucrodon, Trinidad, Trinity Group (geologic formation), Tristel Formation, Tritylodontidae, Triunfosaurus, Tsagaantsav Svita, Tuchengzi Formation, Tugulu Group, Tugulusaurus, Tujingzi Formation, Tunbridge Wells Sand Formation, Tupandactylus, Tupuxuara, Turginskaya Svita, Turiasauria, Twin Mountains Formation, Tylocidaris, Tyrannosauroidea, Tyrannotitan, Uhligites, Uktenadactylus, Ultrasaurus, Umoonasaurus, Unasuchus, Undopterix, Unwindia, Urbion Group, Uruguaysuchidae, Utahraptor, Utsira High, Vaca Muerta, Valanginian, Valdoraptor, Valdosaurus, Valdotriton, Vale of Kent, Valles Pasiegos, Vanilla (genus), Varanoidea, Vargeão Dome, Vectidraco, Vectis Formation, Vectisuchus, Vectocleidus, Velociraptorinae, Venenosaurus, Vescornis, Vesperopterylus, Vianí Fault, Victalimulus, Vincelestes, Vinctifer, Volcanology of Canada, Volcanology of Eastern Canada, Wadhurst Clay Formation, Wakinosaurus, Walgettosuchus, Walking with Dinosaurs, Walking with..., Wallowa Mountains, Wallumbilla Formation, Wannchampsus, Wapuskanectes, Wasp, Wattenberg Gas Field, Way Group, Wayan Formation, Weald, Weald–Artois Anticline, Wealden Group, Wealdenbatrachus, Weberian apparatus, Weichselia, Welwitschiaceae, Wesserpeton, Wessex Formation, West Sussex, Western Weald, Westmount Summit, Whistler Mountain, Winton, Queensland, Wintonotitan, Wollemia, Wonthaggi Formation, Woolmer Forest, Woolungasaurus, Wuerhosaurus, Wyleyia, Xenocretosuchus, Xenoposeidon, Xiagou Formation, Xianglong, Xiangornis, Xianshanosaurus, Xinghaiornis, Xingning Basin, Xinjiangovenator, Xinminbao Group, Xinpongnaobao Formation, Xiongguanlong, Xuwulong, Yabeinosaurus, Yamaceratops, Yanoconodon, Yanornis, Yanornithiformes, Yavanna chimaerica, Yaverlandia, Yaverlestes, Yijinholuo Formation, Yinotheria, Yixian Formation, Yixianornis, Yixianosaurus, Yongjiacaris, Yongjinglong, Yueosaurus, Yukon-Tanana Terrane, Yumenornis, Yunganglong, Yunmenglong, Yurgovuchia, Yutyrannus, Zapalasaurus, Zapata Formation, Zarqa River, Zaza Formation, Zeiformes, Zephyrosaurus, Zhangheotherium, Zhenyuanlong, Zhenyuanopterus, Zhidan Group, Zhongjianornis, Zhongjianosaurus, Zhongornis, Zhouornis, Zingiberales, Zoneait, 100 Million BC, 1830 in paleontology, 1833 in paleontology, 1901 in paleontology, 1904 in paleontology, 1969 in paleontology, 1969 Yangjiang earthquake, 1970 in paleontology, 1971 in paleontology, 1973 in paleontology, 1982 in paleontology, 1984 in paleontology, 1986 in paleontology, 1989 in paleontology, 1992 in paleontology, 1993 in paleontology, 1994 in paleontology, 1995 in paleontology, 1996 in paleontology, 1997 in paleontology, 1999 in paleontology, 2000 in paleontology, 2001 in paleontology, 2002 in paleontology, 2003 in paleontology, 2004 in paleontology, 2005 in paleontology, 2006 in paleontology, 2007 in paleontology, 2008 in paleontology, 2009 in archosaur paleontology, 2010 in archosaur paleontology, 2010 in arthropod paleontology, 2011 in archosaur paleontology, 2011 in arthropod paleontology, 2012 in archosaur paleontology, 2012 in arthropod paleontology, 2012 in fish paleontology, 2012 in paleontology, 2013 in archosaur paleontology, 2013 in paleomalacology, 2013 in paleontology, 2014 in paleontology, 2016 in arthropod paleontology, 2016 in fish paleontology, 2016 in molluscan paleontology, 2016 in paleontology, 2017 in archosaur paleontology, 2017 in arthropod paleontology, 2017 in mammal paleontology, 2017 in paleobotany, 2017 in paleoichthyology, 2017 in paleomalacology, 2017 in paleontology, 2018 in arthropod paleontology, 2018 in mammal paleontology, 2018 in paleobotany, 2018 in paleoichthyology, 2018 in paleomalacology, 2018 in paleontology, 20th century in ichnology. 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"Sinopliosaurus" fusuiensis

"Sinopliosaurus" fusuiensis is a spinosaurid theropod dinosaur from the Early Cretaceous Napan Formation of Guangxi Province, southern China, known only from teeth.

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Abydosaurus

Abydosaurus (meaning "Abydos lizard") is a genus of brachiosaurid sauropod dinosaur known from skull and postcranial material found in upper Lower Cretaceous rocks of northeastern Utah, United States.

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Abyssosaurus

Abyssosaurus is an extinct genus of cryptoclidid plesiosaur known from the Early Cretaceous of Chuvash Republic, western Russia.

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Acamptonectes

Acamptonectes is an extinct genus of ophthalmosaurid ichthyosaur known from England and Germany.

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Acanthohoplites

Acanthohoplites is an extinct genus of ammonites in the family Parahoplitidae that lived in the Aptian and Early Albian stages of the Early Cretaceous.

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Acanthomorpha

Acanthomorpha (meaning "thorn-shaped" in Greek) is an extraordinarily diverse taxon of teleost fishes with spiny-rays.

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Acinacodus

Acinacodus is an extinct genus of amphidontid "eutriconodont" which existed in Shestakovo 1 locality in Western Siberia, Russia during the early Cretaceous period.

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Acostasaurus

Acostasaurus (meaning ‘Acosta’s lizard’) is an extinct genus of possibly Thalassophonean pliosaurid known from the Barremian of the Paja Formation, Colombia.

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Acristatherium

Acristatherium yanensis is an extinct basal eutherian from the Early Cretaceous (early Aptian, about) Lujiatun Bed of the Yixian Formation.

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Acrocanthosaurus

Acrocanthosaurus (meaning "high-spined lizard") is a genus of theropod dinosaur that existed in what is now North America during the Aptian and early Albian stages of the Early Cretaceous.

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Acroteuthis

Acroteuthis is a genus of belemnite from the early Cretaceous of Asia, Europe, and North America.

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Adocus

Adocus is an extinct genus of aquatic turtles belonging to the family Adocidae.

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Adocus beatus

Adocus beatus is an extinct species of aquatic turtles belonging to the family Adocidae.

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Aegirosaurus

Aegirosaurus is an extinct genus of platypterygiine ophthalmosaurid ichthyosaurs known from the late Jurassic and early Cretaceous of Europe.

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Aegocrioceras

Aegocrioceras is an extinct ammonite genus of cephalopod from the Lower Cretaceous included in the Ammonitida.

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Aepisaurus

Aepisaurus (derived from the Greek: αἰπεινός, aipeinós - 'lofty/high' and σαυρος, sauros - 'lizard', i.e. "lofty lizard") was a genus of sauropod dinosaur from the Albian-age Lower Cretaceous Grès vert of Départment du Vaucluse, France, around 100 million years ago.

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Afromimus

Afromimus (meaning "Africa mimic") is a genus of ornithomimosaurian theropod dinosaur from the Early Cretaceous of Niger.

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Agaricomycetes

The Agaricomycetes are a class of fungi in the division Basidiomycota.

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Ageroolithus

Ageroolithus is an oogenus of dinosaur egg.

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Agulhas Plateau

The Agulhas Plateau is an oceanic plateau located in the south-western Indian Ocean about south of South Africa.

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Agustinia

Agustinia is a genus of sauropod dinosaurs from the Early Cretaceous Period of South America.

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Akidolestes

Akidolestes cifellii is a genus of spalacotheriid mammal preserved with a complete post-cranium and a partial skull has been discovered from the Yixian Formation of Liaoning, China.

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Al Shaheen Oil Field

The Al Shaheen Oil Field is a production oil and gas field off the north east coast of Qatar in the Persian Gulf, north of Doha.

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Alamyshik Formation

The Alamyshik Formation is a geological formation in Kyrgyzstan whose strata date back to the Early Cretaceous.

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Alan J. Charig

Alan Jack Charig (1 July 1927 – 15 July 1997) was an English palaeontologist and writer who popularised his subject on television and in books at the start of the wave of interest in dinosaurs in the 1970s.

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Alavaraphidia

Alavaraphidia is an extinct genus of snakefly in the family Mesoraphidiidae.

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Albacora-Leste oil field

The Albacora-Leste Oil Field is an oil field located in Campos Basin.

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Albalophosaurus

Albalophosaurus (meaning 'white crest lizard') is a genus of ceratopsian ornithischian dinosaur.

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Albian

The Albian is both an age of the geologic timescale and a stage in the stratigraphic column.

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Albionbaatar

Albionbaatar is an extinct mammal from the Lower Cretaceous of England.

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Albionbaataridae

Albionbaataridae is a family of small, extinct mammals within the order Multituberculata.

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Alepisauriformes

Alepisauriformes (meaning "lizard form without scales") is an order of fish described by Regan in 1911.

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Algoasaurus

Algoasaurus ("Algoa Bay reptile") is a genus of sauropod dinosaur from the Tithonian-early Valanginian-age Late Jurassic-Early Cretaceous Upper Kirkwood Formation of Cape Province, South Africa.

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Allaru Formation

The Allaru Formation is a geological formation in Queensland, Australia whose strata date back to the Early Cretaceous.

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Alligator gar

The alligator gar (Atractosteus spatula) is a ray-finned euryhaline fish related to the bowfin in the infraclass Holostei (ho'-las-te-i).

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Allodaposuchus

Allodaposuchus is an extinct genus of crocodyliforms that includes four species that lived in what is now southern Europe during the Campanian and Maastrichtian stages of the Late Cretaceous.

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Allosauroidea

Allosauroidea is a superfamily or clade of theropod dinosaurs which contains four families — the Metriacanthosauridae, Allosauridae, Carcharodontosauridae, and Neovenatoridae.

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Altanulia

Altanulia is an extinct genus of prehistoric amphibian.

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Altirhinus

Altirhinus ("high snout") is a genus of iguanodontian ornithopod dinosaur from the Early Cretaceous Period of Mongolia.

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Altispinax

Altispinax ("with high spines") is a genus of large predatory theropod dinosaur from the Early Cretaceous (Valanginian, 140 to 133 million years ago) Wadhurst Clay Formation of East Sussex, England.

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Altusmirus

Altusmirus is an extinct genus of ground shark from the Early Cretaceous age of Austria.

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Alxasaurus

Alxasaurus ("Alxa Desert lizard") is a genus of therizinosauroid alxasaurid theropod dinosaur from the Early Cretaceous Period of Inner Mongolia.

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Amarantoraphidia

Amarantoraphidia is an extinct genus of snakefly in the family Mesoraphidiidae.

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Amargasaurus

Amargasaurus ("La Amarga lizard") is a genus of sauropod dinosaur from the Early Cretaceous epoch (129.4–122.46 mya) of what is now Argentina.

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Amargastegos

Amargastegos (meaning "covered being from La Amarga") is a dubious genus of extinct stegosaurid ornithischian dinosaur.

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Amargasuchus

Amargasuchus is an extinct genus of crocodylomorph.

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Amargatitanis

Amargatitanis (meaning "Amarga giant") is a genus of dicraeosaurid sauropod dinosaur (a type of large, long-necked quadrupedal herbivorous dinosaur) from the Barremian-age (Lower Cretaceous) La Amarga Formation of Neuquén, Argentina.

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Amazonsaurus

Amazonsaurus ("Amazon lizard") is a genus of diplodocoid sauropod dinosaur from the Early Cretaceous Period of what is now South America.

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Amber

Amber is fossilized tree resin, which has been appreciated for its color and natural beauty since Neolithic times.

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Ambiortiformes

Ambiortiformes is a group of prehistoric birds.

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Ambiortus

Ambiortus is a prehistoric bird genus.

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Americhelydia

Americhelydia is a clade of turtles that consists of sea turtles, snapping turtles, the Central American river turtle and mud turtles, supported by several lines of molecular work.

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Amiiformes

The Amiiformes order of fish has only one extant species, the bowfin (Amia calva).

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Anatosuchus

Anatosuchus ("duck crocodile", the name from the Latin anas ("duck") and the Greek souchos ("crocodile"), for the broad, duck-like snout) is an extinct genus of notosuchian crocodylomorph discovered in Gadoufaoua, Niger, and described by a team of palaeontologists led by the American Paul Sereno in 2003, in the Journal of Vertebrate Paleontology.

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Anchiornithidae

Anchiornithidae ("near birds") is a family of eumaniraptorans which could be the basalmost family of birds (in the general sense) in the clade Avialae.

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Ancyloceratidae

Ancyloceratidae is a family of heteromorphic ammonites that lived during the Early Cretaceous.

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Andean orogeny

The Andean orogeny (Orogenia andina) is an ongoing process of orogeny that began in the Early Jurassic and is responsible for the rise of the Andes mountains.

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Anderson County, Texas

Anderson County is a county in the U.S. state of Texas.

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Andreas Kornhuber

(Georg) Andreas von Kornhuber (2 August 1824, Kematen, Oberösterreich – 21 April 1905, Vienna) was an Austrian naturalist and paleontologist.

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Anguimorpha

Anguimorphs of the infraorder Anguimorpha include the anguids (alligator lizards, glass lizards, galliwasps and legless lizards).

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Anhanguera araripensis

Anhanguera araripensis is a pterosaur species from the Albian-age Romualdo Member of the Early Cretaceous Santana Formation, of Barra do Jardim, Araripe Plateau, Ceará Province, Brazil.

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Anhanguera piscator

Anhanguera piscator (meaning "fishing old devil") is a species of pterosaur known from the Early Cretaceous (Albian age, 112Ma) Santana Formation of Brazil.

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Anhanguera robustus

Anhanguera robustus is a large pterosaur species known from fossil remains dating to the Early Cretaceous Period of South America.

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Anhangueridae

Anhangueridae is a group of pterosaurs within the suborder Pterodactyloidea.

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Ankylosauridae

Ankylosauridae are a family of the armored dinosaurs within Ankylosauria, and sister group to Nodosauridae.

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Ankylosaurinae

Ankylosaurinae is a subfamily of ankylosaurid dinosaurs, existing from the Early Cretaceous about 105 million years ago until the end of the Late Cretaceous, about 66 mya.

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Ankylosphenodon

Ankylosphenodon is an extinct species of sphenodontian known from Tepexi de Rodriguez, Mexico.

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Anomodont

Anomodontia is an extinct group of non-mammalian therapsids containing many species from the Permian and Triassic periods (possibly continuing into the Early Cretaceous), most of which were toothless, possibly endothermic herbivores.

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Anomotodon

Anomotodon is an extinct genus of shark related to the extant goblin shark (Mitsukurina owstoni).

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Anoplosaurus

Anoplosaurus (meaning "unarmored or unarmed lizard") is an extinct genus of herbivorous nodosaurid dinosaur, from the late Albian-age Lower Cretaceous Cambridge Greensand of Cambridgeshire, England.

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Anoualerpeton

Anoualerpeton is an extinct genus of lissamphibian in the family Albanerpetontidae.

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Antenor Navarro Formation

The Antenor Navarro Formation is an Early Cretaceous geologic formation in Brazil.

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Anteophthalmosuchus

Anteophthalmosuchus (meaning "forward-pointing eye crocodile") is an extinct genus of goniopholidid mesoeucrocodylian from the Early Cretaceous of southern England, eastern Spain, and western Belgium.

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Anthodon (reptile)

Anthodon (meaning "flower tooth") is an extinct genus of pareiasaurid parareptile from the Permian period of South Africa and Tanzania.

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Anticline

In structural geology, an anticline is a type of fold that is an arch-like shape and has its oldest beds at its core.

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Antlers Formation

The Antlers Formation is a stratum which ranges from Arkansas through southern Oklahoma into northeastern Texas.

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Anurognathidae

The Anurognathidae were a family of small pterosaurs, with short or absent tails, that lived in Europe, Asia, and possibly North America during the Jurassic and Cretaceous periods.

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Aoufous Formation

The Aoufous Formation is a geological formation that contains some of the vertebrate assemblage of the Kem Kem Beds, of Late Cretaceous date.

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Apateodus

Apateodus (meaning "confusing tooth") is a genus of prehistoric ray-finned fish which was described by Woodward in 1901.

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Apatomerus

Apatomerus (meaning "deceptive femur"), is a genus of extinct reptile known from a single fossil (KUVP 1199) from the Albian-age (Lower Cretaceous) Kiowa Shale of Kansas, USA.

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Apón Formation

The Apón Formation is a geological formation in northwestern Venezuela (Maracaibo Basin) and northern Colombia (La Guajira),García González et al., 2010 whose thick-bedded limestone interbedded with subordinate amounts of dark gray calcareous shale and sandy shale strata date back to the Early Cretaceous (Late Aptian epoch).

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Apricosiren

Apricosiren is an extinct genus of prehistoric salamander.

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Apt, Vaucluse

Apt (Provençal Occitan: At / Ate in both classical and Mistralian norms) is a commune in the Vaucluse department in the Provence-Alpes-Côte d'Azur region in southeastern France.

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Aptian

The Aptian is an age in the geologic timescale or a stage in the stratigraphic column.

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Apulia Carbonate Platform

The Apulia Carbonate Platform in Apulia, Italy was a major palaeogeographic element of the southern margin of the Mesozoic Tethys Ocean.

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Aquilops

Aquilops is an early herbivorous ceratopsian dinosaur dating from the Early Cretaceous of North America, approximately 108 million to 104 million years ago.

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Arabika Massif

Arabika Massif is a glacially eroded karst outcropping of the Gagra Range, Abkhazia in the West Caucasus, by the city of Gagra.

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Aragosaurus

Aragosaurus (meaning "Aragon lizard") was a genus of sauropod dinosaur from the Early Cretaceous period of Galve, province of Teruel, in the autonomous territory of Aragón, Spain.

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Arapaimidae

Arapaimidae is a family of freshwater osteoglossiform fishes known as the bonytongues.

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Araripe manakin

The Araripe manakin (Antilophia bokermanni) is a critically endangered bird from the family of manakins (Pipridae).

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Araripedactylus

Araripedactylus was a large genus of pterodactyloid pterosaur, known from a single wing bone found in the Early Cretaceous Santana Formation of Brazil.

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Araripesaurus

Araripesaurus was a pterosaur, belonging to the Pterodactyloidea, from the Santana Formation of Brazil, dating from the Early Cretaceous.

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Araripesuchus

Araripesuchus is a genus of extinct crocodyliform that existed during the Cretaceous period of the late Mesozoic era some 125 to 66 million years ago.

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Arcanosaurus

Arcanosaurus is an extinct genus of varanoid lizard from the Early Cretaceous of Spain.

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Archaeamphora

Archaeamphora longicervia is an extinct species of flowering plants and the only member of the genus Archaeamphora.

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Archaeoceratops

Archaeoceratops, meaning "ancient horned face", is a genus of basal neoceratopsian dinosaur from the Early Cretaceous (Aptian stage) of north central China.

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Archaeopterodactyloidea

Archaeopterodactyloidea (meaning "ancient Pterodactyloidea") is an extinct clade of pterodactyloid pterosaurs from the middle Late Jurassic to the latest Early Cretaceous (Kimmeridgian to Albian stages) of Africa, Asia and Europe.

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Archaeorhynchus

Archaeorhynchus is a genus of beaked avialans (proto-birds) from the early Cretaceous period.

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Archaeornithomimus

Archaeornithomimus (meaning "ancient bird mimic") is a genus of ornithomimosaurian theropod dinosaur from the Late Cretaceous of China, 70 million years ago.

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Archaeornithura

Archaeornithura is an extinct genus of ornithuromorphs from the early Cretaceous period.

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Archimyrmex

Archimyrmex is an extinct genus of ant in the formicid subfamily Myrmeciinae, described by palaeoentomologist Theodore Cockerell in 1923.

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Archonta

The Archonta are a group of mammals, considered a superorder in some classifications, which consists of the following orders.

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Arcillas de Morella Formation

The Arcillas de Morella Formation is a geological formation in Spain whose strata date back to the Early Cretaceous.

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Argiles à Plicatules

The Argiles à Plicatules (French for: "clay with Plicatula") is a geological formation in northern central France whose strata date back to the Early Cretaceous.

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Argiles Ostréennes

The Argiles Ostréennes (French for: "clay with fossil oysters") is a geological formation in northern central France whose strata date back to the Early Cretaceous.

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Arginbaatar

Arginbaatar is a genus of extinct mammal from the Lower Cretaceous of Mongolia.

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Aristosuchus

Aristosuchus was a small coelurosaurian dinosaur whose name was derived from the Greek ἄριστος (meaning bravest, best, noblest) and σουχος (the Ancient Greek corruption of the name of the Egyptian crocodile-headed god Sobek).

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Arkansaurus

Arkansaurus (meaning "Arkansas lizard") is an extinct genus of ornithomimid theropod dinosaur.

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Armançon

The River Armançon drains part of north-western Burgundy in France.

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Aroley Formation

The Couches de l’Aroley (short: Aroley Formation) are a sedimentary formation deposited during the Early Cretaceous (Barremian to Aptian).

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Arowana

Arowanas are freshwater bony fish of the family Osteoglossidae, also known as bonytongues (the latter name is now often reserved for Arapaimidae).

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Arthurdactylus

Arthurdactylus is a genus of pterodactyloid pterosaur from the Early Cretaceous Santana Formation of northeastern Brazil.

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Artoles Formation

The Artoles Formation is a geological formation in Teruel and La Rioja, Spain whose strata date back to the Early Cretaceous.

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Arundel Formation

The Arundel Formation, also known as the Arundel Clay, is a clay-rich sedimentary rock formation, within the Potomac Group, found in Maryland of the United States of America.

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Ascalaphidae

Ascalaphidae is a family of insects in the order neuroptera, sometimes called owlflies.

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Ashdown Forest

Ashdown Forest is an ancient area of tranquil open heathland occupying the highest sandy ridge-top of the High Weald Area of Outstanding Natural Beauty.

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Ashdown Formation

The Ashdown Formation is a geological unit, which forms part of the Wealden Group and the lowermost and oldest part of the now unofficial Hastings Beds.

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Asian arowana

The Asian arowana (Scleropages formosus) comprises several phenotypic varieties of freshwater fish distributed geographically across Southeast Asia.

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Asiatosaurus

Asiatosaurus (meaning "Asian lizard") was a genus of herbivorous sauropod dinosaur which lived during the early Cretaceous.

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Asioryctitheria

Asioryctitheria ("asian digging beasts") is an extinct order of early eutherians.

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Aspinoceras

Aspinoceras is an extinct genus of heteromorph ammonites that lived during the Early Cretaceous.

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Asterotrygon

Asterotrygon is an extinct genus of stingray from the Eocene Green River Formation in Wyoming.

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Astrodon

Astrodon (aster: star, odon: tooth) is a genus of large herbivorous sauropod dinosaur, related to Brachiosaurus, that lived in what is now the eastern United States during the Early Cretaceous period.

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Astrophocaudia

Astrophocaudia is a genus of somphospondylan sauropod known from the late Early Cretaceous (Albian stage) of Texas, United States.

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Athabascasaurus

Athabascasaurus is an extinct genus of platypterygiine ophthalmosaurid ichthyosaur known from Alberta, Canada.

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Atlanticopristis

Atlanticopristis (meaning "Atlantic saw") is an extinct genus of sclerorhynchid sawfish that lived during the Middle Cretaceous (Cenomanian) of what is now the Northeast Region of Brazil.

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Atlascopcosaurus

Atlascopcosaurus (meaning "Atlas Copco lizard") is a genus of herbivorous basal iguanodont dinosaur from the Early Cretaceous of the present Australia.

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Atokasaurus

Atokasaurus is an extinct genus of scincomorph lizard from the Early Cretaceous of Oklahoma.

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Atoposauridae

Atoposauridae is a family of crocodile-line archosaurs belonging to Neosuchia.

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Aubignosc

Aubignosc is a commune in the Alpes-de-Haute-Provence department in the Provence-Alpes-Côte d'Azur region of south-eastern France.

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Aulacogen

An aulacogen is a failed arm of a triple junction.

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Aulopiformes

Aulopiformes is a diverse order of marine ray-finned fish consisting of some 15 extant and several prehistoric families with about 45 genera and over 230 species.

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Aureille

Aureille is a commune in the Bouches-du-Rhône department in the Provence-Alpes-Côte d'Azur region of southern France.

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Auroraceratops

Auroraceratops, meaning "dawn horned face", is a genus of basal neoceratopsian dinosaur, from the Early Cretaceous (Aptian age) of north central China and South Korea.

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Ausktribosphenidae

Ausktribosphenidae is a family of therians from the Early Cretaceous of Australia that are closely related to monotremes.

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Ausktribosphenos

Ausktribosphenos is an extinct genus of mammals from Early Cretaceous of Australia.

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Australochelys

Australochelys was a genus of rhaptochelydian turtle.

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Austrosaurus

Austrosaurus (meaning "Southern lizard") was an extinct genus of sauropod dinosaur from the Allaru Formation and Winton Formation, from the early Cretaceous (110-105 million years ago) of Central-Western Queensland in Australia.

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Authon, Alpes-de-Haute-Provence

Authon is a French commune in the Alpes-de-Haute-Provence department in the Provence-Alpes-Côte d'Azur region of south-eastern France.

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Avebrevicauda

Avebrevicauda (meaning "birds with short tails") is a group which includes all avialan species with ten or fewer free vertebrae in the tail.

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Avgodectes

Avgodectes is an invalid pterosaur genus.

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Avisauridae

Avisauridae is a family of extinct enantiornithean birds from the Cretaceous period, distinguished by several features of their ankle bones.

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Aymberedactylus

Aymberedactylus (meaning "small lizard finger") is a genus of tapejarid pterosaur from the Early Cretaceous Crato Formation of Brazil.

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Ayoluengo oil field

The Ayoluengo oil field is an oil field located in Sargentes de la Lora, Province of Burgos.

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Široki Brijeg

Široki Brijeg is a city and the administrative center of West Herzegovina Canton of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina.

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Baculina

Baculina is an extinct ammonoid cephalopod genus belonging to the ancylocerid family Bochianitidae.

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Bahia

Bahia (locally) is one of the 26 states of Brazil and is located in the northeastern part of the country on the Atlantic coast.

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Ballans

Ballans is a French commune in the Charente-Maritime department in the Poitou-Charente region of south-western France.

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Banguela

Banguela oberlii is a dsungaripterid pterosaur from the Early Cretaceous of Brazil.

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Barbosania

Barbosania is an extinct genus of crestless ornithocheirid pterosaur from the Cretaceous Romualdo Member of the Santana Formation of Northeastern Brazil, dating to the Albian-Albian stage.

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Barcinosuchus

Barcinosuchus (meaning "Cerro Barcino Formation's crocodile") is an extinct genus of carnivorous metasuchian from the early Cretaceous period.

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Barilium

Barilium is a genus of iguanodontian dinosaur which was first described as a species of Iguanodon (I. dawsoni) by Richard Lydekker in 1888, the specific epithet honouring the discoverer Charles Dawson.

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Barrême

Barrême is a commune in the Alpes-de-Haute-Provence department in the Provence-Alpes-Côte d'Azur region of south-eastern France.

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Barremian

The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 129.4 ± 1.5 Ma (million years ago) and 125.0 ± 1.0 Ma). It is a subdivision of the Early Cretaceous epoch (or Lower Cretaceous series). It is preceded by the Hauterivian and followed by the Aptian stage.See Gradstein et al. (2004) or the online geowhen database (link below).

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Barremitinae

Barremitinae is a subfamily belonging to the Ammonoidea subclass.

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Baryonyx

Baryonyx is a genus of theropod dinosaur which lived in the Barremian stage of the early Cretaceous Period, about 130–125 million years ago.

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Basilochelys

Basilochelys is an extinct genus of land turtle which existed from the late Jurassic to the early Cretaceous period.

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Bauxite of Cornet

The Bauxite of Cornet is a geological formation in Romania whose strata date back to the Early Cretaceous.

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Bayin-Gobi Formation

The Bayin-Gobi Formation is a geological formation in Inner Mongolia, north China, whose strata date back to the Early Cretaceous period.

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Beardfish

The beardfishes consist of a single extant genus, Polymixia, of deep-sea marine ray-finned fish named for their pair of long hyoid barbels.

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Beattie Peaks Formation

The Beattie Peaks Formation is a geologic formation of Early Cretaceous (Valanginian) age in the Western Canada Sedimentary Basin that consists primarily of marine mudstone.

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Beaver Mines Formation

The Beaver Mines Formation is a stratigraphic unit of Early Cretaceous (Albian) age in the Western Canada Sedimentary Basin that is present in southwestern Alberta and southeastern British Columbia, Canada.

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Bee

Bees are flying insects closely related to wasps and ants, known for their role in pollination and, in the case of the best-known bee species, the European honey bee, for producing honey and beeswax.

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Beipiaognathus

Beipiaognathus (meaning Beipiao jaw) is a genus of coelurosaurian theropod from the Early Cretaceous Yixian Formation of Liaoning, China.

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Beipiaopterus

Beipiaopterus is a genus of ctenochasmatid pterosaur (flying reptile) from the Lower Cretaceous Yixian Formation (Aptian) in the People's Republic of China.

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Beipiaosaurus

Beipiaosaurus is a genus of therizinosauroid theropod dinosaur from the Early Cretaceous of China.

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Beishanlong

Beishanlong is a genus of giant ornithomimosaurian theropod dinosaur from the Early Cretaceous of China.

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Belemnotheutis

Belemnotheutis, is an extinct coleoid cephalopod genus from the middle and upper Jurassic, related to but morphologically distinct from belemnites.

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Belidae

Belidae is a family of weevils, called belids or primitive weevils because they have straight antennae, unlike the "true weevils" or Curculionidae which have elbowed antennae.

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Belinae

Belinae are a Gondwanan subfamily of beetles which belong to the belids, primitive weevils of the family Belidae.

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Beloniformes

Beloniformes is an order composed of six families (and about 264 species) of freshwater and marine ray-finned fish.

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Bennettazhia

Bennettazhia is a genus of pterosaur (flying reptile).

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Bermuda hotspot

The Bermuda hotspot is a supposed midplate hotspot swell in the Atlantic Ocean 500-1000 km southeast of Bermuda, proposed to explain the extinct volcanoes of the Bermuda Rise as well as the Mississippi Embayment and the Sabine Uplift southwest of the Mississippi Embayment.

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Bernardodon

Bernardodon was a small, Lower Cretaceous mammal from Portugal.

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Bernissartia

Bernissartia ('of Bernissart') is an extinct genus of neosuchian crocodyliform that lived in the Early Cretaceous, around 130 million years ago.

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Berriasian

In the geological timescale, the Berriasian is an age or stage of the Early Cretaceous.

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Beryciformes

The Beryciformes are a poorly-understood order of carnivorous ray-finned fishes consisting of 7 families, 30 genera, and 161 species.

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Bickford Formation

The Bickford Formation is a geologic formation of Early Cretaceous (Valanginian) age in the Western Canada Sedimentary Basin that consists primarily of nonmarine sediments.

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Bidentalia

Bidentalia is a group of dicynodont therapsids.

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Bighorn Mountains

The Bighorn Mountains (Apsáalookěi: Basawaxaawúua or Iisaxpúatahchee Isawaxaawúua) are a mountain range in northern Wyoming and southern Montana in the United States, forming a northwest-trending spur from the Rocky Mountains extending approximately 200 miles (320 km) northward on the Great Plains.

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Bird

Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

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Bird ichnology

Bird ichnology is the study of avian life traces in ornithology and paleontology.

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Bishops (mammal)

Bishops is an extinct genus of mammals from Early Cretaceous of Australia.

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Blackborough End Pit

Blackborough End Pit is a geological Site of Special Scientific Interest south-east of King's Lynn in Norfolk.

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Blairmore Group

The Blairmore Group, originally named the Blairmore Formation, is a geologic unit of Early Cretaceous age in the Western Canada Sedimentary Basin that is present in southwestern Alberta and southeastern British Columbia.

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Blesa Formation

The Bles Formation is a geological formation in Teruel and La Rioja, Spain whose strata date back to the Early Cretaceous.

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Bluesky Formation

The Bluesky Formation is a stratigraphic unit of Lower Cretaceous age in the Western Canada Sedimentary Basin.

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Bluff Dale Sandstone

The Bluff Dale Sandstone is a geological formation in Texas whose strata date back to the Early Cretaceous.

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Bobdownsite

Bobdownsite is the fluorine bearing mineral of the whitlockite group of phosphate minerals whose formula is Ca9(Mg)(PO4)6(PO3F).

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Bochianites

Bochianites is a straight shelled ammonite which lived from the Upper Jurassic, Tithonian, to the Lower Cretaceous, Hauterivian in what is now Europe, Greenland, Africa, North America and Asia.

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Bohaiornis

Bohaiornis is a genus of enantiornithean birds.

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Bohaiornithidae

Bohaiornithidae is a group of early predatory enantiornitheans from the early Cretaceous Period of China.

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Bolivar Coastal Fields

The Bolivar Coastal Fields (BCF), also known as the Bolivar Coastal Complex, is located on the eastern margin of Lake Maracaibo, Venezuela.

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Bolodon

Bolodon is a genus of extinct mammal from the Lower Cretaceous of Europe and North America.

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Bolong

Bolong (meaning "small dragon") is a genus of iguanodontoid dinosaur known from the Early Cretaceous-age Yixian Formation of western Liaoning Province, China.

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Bolter End Sand Pit

Bolter End Sand Pit is a 0.33 hectare geological Site of Special Scientific Interest in Bolter End in Buckinghamshire.

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Boluochia

Boluochia zhengi was an enantiornithine bird.

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Borealopelta

Borealopelta (meaning "Northern shield") is a genus of nodosaurid ankylosaur from the Early Cretaceous of Alberta, Canada.

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Boreopteridae

Boreopteridae (meaning "northern wings") is a group of ornithocheiroid pterosaurs from the Aptian-age Lower Cretaceous Yixian Formation of Liaoning, China.

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Boreopterus

Boreopterus is a genus of pterodactyloid pterosaur from the Barremian-Aptian-age Lower Cretaceous Yixian Formation of Dalian, Liaoning, China.

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Boulder Creek Formation

The Boulder Creek Formation is a geologic formation in northeastern British Columbia.

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Bowerchalke

Bowerchalke is a village and civil parish in Wiltshire, England, about southwest of Salisbury.

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BP Structure

The BP Structure, also known as Gebel Dalma, is an exposed impact crater in Libya.

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Brachiosauridae

The Brachiosauridae ("arm lizards", from Greek brachion (βραχίων).

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Brachiosaurus

Brachiosaurus is a genus of sauropod dinosaur from the Jurassic Morrison Formation of North America.

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Brachyopoidea

Brachyopoidea is a superfamily of temnospondyls that lived during the Mesozoic.

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Brachytrachelopan

Brachytrachelopan is a short-necked sauropod dinosaur from the latest Jurassic Period (Tithonian) of Argentina.

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Brancasaurus

Brancasaurus (meaning "Branca's lizard") is a genus of plesiosaur which lived in a freshwater lake in the Early Cretaceous of what is now North Rhine-Westphalia, Germany.

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Brasileodactylus

Brasileodactylus a genus of pterosaur from the Aptian (Early Cretaceous), Lower Santana formation of Chapada do Araripe, Ceará, Brazil.

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Brillanceausuchus

Brillanceausuchus is an extinct genus of atoposaurid crocodylomorph.

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Brontomerus

Brontomerus (from Greek bronte meaning "thunder", and merós meaning "thigh") is a possibly dubious genus of camarasauromorph sauropod which lived during the early Cretaceous (Aptian or Albian age, approximately 110 million years ago).

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Buchan Oil Field

The Buchan oil field is a small oil field with small gas reserves in the central North Sea.

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Buda Limestone

The Buda Limestone is a geological formation in the High Plains and Trans-Pecos regions of West Texas whose strata date back to the Late Cretaceous.

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Buesaco-Aranda Fault

The Buesaco-Aranda Fault (Falla Buesaco-Aranda) is a dextral strike-slip fault in the department of Nariño in southwestern Colombia.

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Bullhead Group

Bullhead Group is a stratigraphic unit of Lower Cretaceous age in the Western Canada Sedimentary Basin of northeastern British Columbia and western Alberta.

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Bullichthys

Bullichthys is an extinct genus of albuliform fish which existed in Brazil during the Lower Cretaceous period.

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Bungil Formation

The Bungil Formation is a geological formation in Australia whose strata date back to the Early Cretaceous.

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Burro Canyon Formation

The Burro Canyon Formation is an Early Cretaceous Period sedimentary geologic formation, found in western Colorado, the Chama Basin and eastern San Juan Basin of northern New Mexico, and in eastern Utah.

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Cactus

A cactus (plural: cacti, cactuses, or cactus) is a member of the plant family Cactaceae,Although the spellings of botanical families have been largely standardized, there is little agreement among botanists as to how these names are to be pronounced.

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Cadomin Formation

The Cadomin Formation is a stratigraphic unit of Early Cretaceous (Barremian to Aptian) age in the western part of the Western Canada Sedimentary Basin.

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Calamosaurus

Calamosaurus (meaning "reed lizard") was a genus of small theropod dinosaur from the Barremian-age Lower Cretaceous Wessex Formation of the Isle of Wight, England.

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Calamospondylus

Calamospondylus (meaning "quill vertebrae") was a theropod dinosaur genus.

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Calanguban

Calanguban is an extinct genus of scincomorph lizard from the Early Cretaceous of South America.

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Calcaire à Spatangues

The Calcaire à Spatangues (French for: "limestone with Spatangus") is a geological formation in the Paris basin of northern central France whose strata date back to the Early Cretaceous.

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Calizas de La Huérgina Formation

The Calizas de La Huérgina Formation (also known as the Una Formation) is a geological formation in Spain whose strata date back to the Early Cretaceous.

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Callawayasaurus

Callawayasaurus is a genus of plesiosaur from the family Elasmosauridae.

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Callipurbeckia

Callipurbeckia is an extinct genus of neopterygian ray-finned fish from the Jurassic and Cretaceous periods.

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Callobatrachus

Callobatrachus is an extinct genus of discoglossoid anuran amphibian from the Early Cretaceous-age Yixian Formation of Liaoning, China.

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Calpionella

Calpionella is an extinct genus of single celled eukaryotes.

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Calpionellidae

Calpionellidae are an extinct family of eukaryotic single celled organisms.

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Calpionellites darderi

Calpionellites darderi is an extinct planktonic eukaryote and an important index fossil for the Lower Cretaceous stratigraphy.

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Camarasauridae

Camarasauridae (meaning "chambered lizards") is a family of neosauropod dinosaurs within the clade Macronaria, the sister group to Titanosauriformes.

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Camarillas Formation

The Camarillas Formation is a geological formation in Teruel and La Rioja, Spain whose strata date back to the Early Cretaceous.

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Camarillasaurus

Camarillasaurus is a genus of basal ceratosaurian theropod dinosaur known from the Early Cretaceous (Barremian) of Camarillas, Teruel Province, in what is now northeastern Spain.

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Camarodonta

The Camarodonta are an order of globular sea urchins in the class Echinoidea.

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Camposipterus

Camposipterus is a genus of pterodactyloid pterosaur from the Cretaceous of England.

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Camptodontus (bird)

"Camptodontus" (meaning "bent tooth") is an extinct genus of enantiornithine bird which existed in what is now Chaoyang in Liaoning Province, China during the early Cretaceous period (Aptian age).

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Candidodon

Candidodon is an extinct genus of notosuchian mesoeucrocodylian.

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Candidodontidae

Candidodontidae is a family of notosuchian crocodyliforms.

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Cantabroraphidia

Cantabroraphidia is an extinct genus of snakefly in the family Mesoraphidiidae.

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Carcharhiniformes

Carcharhiniformes, the ground sharks, with over 270 species, are the largest order of sharks.

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Carcharodontosaurus

Carcharodontosaurus is a genus of carnivorous carcharodontosaurid dinosaurs that existed between 112 and 93.5 million years ago,Holtz, Thomas R. Jr.

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Caririsuchus

Caririsuchus is an extinct genus of trematochampsid crocodylomorph.

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Carpathian Flysch Belt

The Carpathian Flysch Belt is an arcuate tectonic zone included in the megastructural elevation of the Carpathians on the external periphery of the mountain chain.

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Carsosaurus

Carsosaurus is an extinct genus of mosasauroid that existed during the Early and Late Cretaceous period, about 101-93 million years ago.

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Cascade Caverns

Cascade Caverns is a historically, geologically, and biologically important limestone solutional cave south of Boerne, Texas, United States, on 226 Cascade Caverns Road, in Kendall County.

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Cascoplecia

Cascoplecia insolitis, commonly known as the unicorn fly, is an extinct dipteran that lived in the Early Cretaceous.

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Casierius

Casierius is an extinct genus of prehistoric bony fish that lived during the Albian stage of the Early Cretaceous epoch.

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Castellar Formation

The Castellar Formation is a geological formation in La Rioja and Teruel, Spain whose strata date back to the Early Cretaceous.

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Catfish

Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish.

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Cathayopterus

Cathayopterus is a ctenochasmatid pterosaur from the Early Cretaceous-age Yixian Formation of Liaoning, China.

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Cathayornis

Cathayornis is a genus of enantiornithean birds from the Jiufotang Formation of Liaoning, People's Republic of China.

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Caudipteridae

Caudipteridae is a family of oviraptorosaurian dinosaurs known from the Early Cretaceous of China.

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Caudipteryx

Caudipteryx (which means "tail feather") is a genus of peacock-sized theropod dinosaurs that lived in the Aptian age of the early Cretaceous Period (about 124.6 million years ago).

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Caulkicephalus

Caulkicephalus is a genus of Ornithocheirid pterosaur, from the Isle of Wight off the coast of England.

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Caupedactylus

Caupedactylus is an extinct genus of tapejarid azhdarchoid pterosaur known from the Early Cretaceous Romualdo Formation of the Araripe Basin, northeastern Brazil.

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Caypullisaurus

Caypullisaurus is an extinct genus of large platypterygiine ophthalmosaurid ichthyosaur from the Late Jurassic to the Early Cretaceous (Tithonian and Berriasian stages) of Argentina.

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Cearachelys

Cearachelys is an extinct genus of pleurodiran turtle which existed some 80 million years ago.

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Cearadactylus

Cearadactylus is a genus of large Early Cretaceous (Albian) pterosaurs from South America.

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Cedar Mountain Formation

The Cedar Mountain Formation is the name given to a distinctive sedimentary geologic formation in eastern Utah.

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Cedarosaurus

Cedarosaurus (meaning "Cedar lizard" - named after the Cedar Mountain Formation, in which it was discovered) was a nasal-crested macronarian dinosaur genus from the Early Cretaceous Period (Barremian).

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Cedarpelta

Cedarpelta is an extinct genus of herbivorous basal ankylosaurid ankylosaur, based on material recovered from the Lower Cretaceous of North America.

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Cedrorestes

Cedrorestes is a genus of iguanodontian dinosaur from the Early Cretaceous of Utah.

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Celtedens

Celtedens is an extinct genus of albanerpetontid amphibian from the Late Cretaceous of Spain, Early Cretaceous of England, and the Late Jurassic of Portugal.

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Ceratopsia

Ceratopsia or Ceratopia (or; Greek: "horned faces", Κερατόψια) is a group of herbivorous, beaked dinosaurs that thrived in what are now North America, Europe, and Asia, during the Cretaceous Period, although ancestral forms lived earlier, in the Jurassic.

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Ceratosauridae

Ceratosauridae is a family of theropod dinosaurs belonging to the infraorder Ceratosauria.

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Cetarthrosaurus

Cetarthrosaurus is an extinct genus of ichthyosaur known from the eastern United Kingdom.

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Chalawan (genus)

Chalawan (from ชาละวัน) is an extinct genus of pholidosaurid mesoeucrocodylian known from the Early Cretaceous Phu Kradung Formation of Nong Bua Lamphu Province, northeastern Thailand.

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Changchengornis

Changchengornis is an extinct basal bird genus from the Early Cretaceous.

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Changchunsaurus

Changchunsaurus (meaning "Changchun lizard") is an extinct genus of small herbivorous ornithopod dinosaur from Early Cretaceous deposits of Gongzhuling, Jilin, China.

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Changmaornis

Changmaornis is an extinct genus of basal ornithuromorph dinosaur known from the Early Cretaceous Xiagou Formation of Changma Basin, Gansu Province of northwestern China.

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Changyuraptor

Changyuraptor is a genus of "four-winged", predatory dinosaurs.

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Changzuiornis

Changzuiornis is an extinct genus of ornithuromorph bird from the Early Cretaceous of present-day China.

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Chanopsis

Chanopsis is an extinct genus of prehistoric bony fish that lived during the Aptian stage of the Early Cretaceous epoch.

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Chaoyang, Liaoning

Chaoyang is a prefecture-level city of Liaoning province, People's Republic of China.

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Chaoyangia

Chaoyangia is an extinct genus of euornithean birds, containing the single species Chaoyangia beishanensis.

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Chaoyangopteridae

The Chaoyangopteridae are a family of pterosaurs within the Azhdarchoidea.

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Chaoyangopterus

Chaoyangopterus is a genus of azhdarchoid pterodactyloid pterosaur known from a partial skeleton found in Liaoning, China.

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Checua

Checua is a preceramic open area archaeological site in Nemocón, Cundinamarca, Colombia.

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Chesapeake Bay impact crater

The Chesapeake Bay impact crater was formed by a bolide that impacted the eastern shore of North America about 35.5 ± 0.3 million years ago, in the late Eocene epoch.

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Chiayusaurus

Chiayusaurus (meaning "Chia-yu-kuan lizard", after where it was found) was a genus of sauropod dinosaur known from teeth found in Asia.

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Chiayusuchus

Chiayusuchus is an extinct genus of stomatosuchid crocodylomorph.

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Chigutisauridae

Chigutisauridae is an extinct family of large temnospondyl amphibians.

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Chilantaisaurus

Chilantaisaurus ("Ch'i-lan-t'ai lizard") is a genus of neovenatorid theropod dinosaur from the late Cretaceous Ulansuhai Formation of China (Turonian stage, about 92 million years ago).

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Chimaerasuchidae

Chimaerasuchidae ("Chimera crocodiles") is a family of mesoeucrocodylians.

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Chimaerasuchus

Chimaerasuchus ("chimera crocodile") is an extinct genus of Chinese crocodyliform from the Early Cretaceous.

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Chometokadmon

Chometokadmon is an extinct genus of anguimorph lizard from the Early Cretaceous of Italy.

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Chondrosteosaurus

Chondrosteosaurus (meaning "cartilage and bone lizard") was a sauropod from Early Cretaceous England.

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Chongmingia

Chongmingia is a genus of primitive avialan that lived during the Aptian.

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Chronoperates

Chronoperates (meaning "time wanderer" in Greek) is an extinct genus of mammal whose remains have been found in a late Paleocene deposit in Alberta, Canada.

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Chuanqilong

Chuanqilong is an extinct genus of ankylosaurid dinosaur from the Early Cretaceous of China.

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Chubutemys

Chubutemys was an extinct genus of meiolaniform turtle.

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Chuhsiungichthys

Chuhsiungichthys is an extinct genus of ichthyodectiform ray-finned fish that lived in freshwater environments in what is now Yunnan, China, and Kyushu, Japan, during the Cretaceous.

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Chulec Formation

The Chulec Formation is a geological formation in Peru whose strata date back to the Early Cretaceous.

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Cifelliodon

Cifelliodon is an extinct genus of haramiyid mammal from the Lower Cretaceous of North America.

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Cimoliasaurus

Cimoliasaurus was a plesiosaur that lived during the Late Cretaceous (Maastrichtian) of New Jersey.

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Cimoliopterus

Cimoliopterus is a genus of pterodactyloid pterosaur from the Cretaceous of England, United Kingdom and Texas, United States.

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Cipactlichthys

Cipactlichthys is a genus of extinct Holostean fish from the Lower Cretaceous of Mexico.

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Cixiidae

The Cixiidae are a family of fulgoroid insects, one of many families commonly known as planthoppers, distributed worldwide and comprising more than 2,000 species from over 150 genera.

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Clearwater Formation

The Clearwater Formation is a stratigraphic unit of Early Cretaceous (Albian) age in the Western Canada Sedimentary Basin in northeastern Alberta, Canada.

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Cloverly Formation

The Cloverly Formation is a geological formation of Early Cretaceous age (Aptian to Albian stage) that is present in parts of Montana, Wyoming, Colorado and Utah in the western United States.

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Clupeiformes

Clupeiformes is the order of ray-finned fish that includes the herring family, Clupeidae, and the anchovy family, Engraulidae.

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Coast Range Arc

The Coast Range Arc was a large volcanic arc system, extending from northern Washington through British Columbia and the Alaska Panhandle to southwestern Yukon.

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Coeluridae

Coeluridae is a historically unnatural group of generally small, carnivorous dinosaurs from the late Jurassic Period.

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Coelurus

Coelurus is a genus of coelurosaurian dinosaur from the Late Jurassic period (mid-late Kimmeridgian faunal stage, 153–150 million years ago).

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Collingwood, Queensland

Collingwood is a former town in the Channel Country in Central West Queensland, Australia, in the Shire of Winton.

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Coloborhynchus

Coloborhynchus is a genus in the pterosaur family Ornithocheiridae, and is known from the Lower Cretaceous of England (Valanginian age, 140-136 million years ago), and depending on which species are included, possibly the Albian age (113-100.5 million years ago) as well.

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Coloborhynchus spielbergi

Coloborhynchus spielbergi is a pterosaur species from the Albian-age Romualdo Member of the Lower Cretaceous Santana Formation, of Barra do Jardim, Araripe Plateau, Ceará Province, Brazil.

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Coloniatherium

Coloniatherium is a dryolestoid mammal from the Late Cretaceous of Argentina.

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Comahuesuchidae

Comahuesuchidae is a family of notosuchian crocodyliforms.

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Componocancer

Componocancer roberti is an unusual species of fossil crab described in 2008.

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Compression fossil

A compression fossil is a fossil preserved in sedimentary rock that has undergone physical compression.

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Compsognathidae

Compsognathidae is a family of coelurosaurian theropod dinosaurs.

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Concavenator

Concavenator is a genus of theropod dinosaur that lived approximately 130 million years ago during the early Cretaceous period (Barremian stage).

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Concornis

Concornis is a genus of enantiornithean birds which lived during the early Cretaceous period, in the late Barremian age about 125 million years ago.

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Confuciusornis

Confuciusornis is a genus of primitive crow-sized birds from the Early Cretaceous Yixian and Jiufotang Formations of China, dating from 125 to 120 million years ago.

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Confuciusornithidae

Confuciusornithidae is an extinct family of early birds known from the Early Cretaceous, found in northern China.

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Confuciusornithiformes

Confuciusornithiformes is a group of beaked, long-winged avialans from the early Cretaceous Period of China.

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Conglomerados de Caranguejeira

The Conglomerados de Caranguejeira is a Late Jurassic to Early Cretaceous geologic formation in Brazil.

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Copepod

Copepods (meaning "oar-feet") are a group of small crustaceans found in the sea and nearly every freshwater habitat.

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Coptoclavidae

Coptoclavidae is an extinct family of beetles in the suborder Adephaga.

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Corda Formation

The Corda Formation is a red sandstone geologic formation in the Parnaíba River Basin, in State of Tocantins of Brazil.

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Cordicephalus gracilis

Cordicephalus gracilis is the only species in the extinct genus Cordicephalus, a genus of prehistoric frogs.

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Corpulentapus

Corpulentapus is an ichnogenus of Early Cretaceous theropod tracks uncovered at the Zhucheng tracksite in Shandong, PR China.

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Corriebaatar

Corriebaatar is the type and only genus of Corriebaataridae, a family of multituberculate mammals.

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Coxoplectoptera

Coxoplectoptera or "chimera wings" is a primitive, extinct order of winged insects containing one family, Mickoleitiidae, discovered in 2007.

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Craspedodiscus (ammonite)

Craspedodiscus is a genus of cephalopods in the ammonite superfamily Perisphinctaceae from the mid Early Cretaceous (Hauterivian-Barremian) of Northern Europe and Siberia that lived some 125 Ma.

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Craterosaurus

Craterosaurus (meaning krater reptile or bowl reptile) was a genus of stegosaurid dinosaur.

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Cratia

Cratia is an extinct frog which existed in Brazil during the lower Cretaceous period.

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Crato Formation

The Crato Formation is a geologic formation of Early Cretaceous age in northeastern Brazil's Araripe Basin.

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Cratoavis

Cratoavis is a genus of enantiornithine birds.

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Cretaceogekko

Cretaceogekko is an extinct monotypic genus of gecko (represented by the type species Cretaceogekko burmae) known from a single partial specimen preserved in amber from the Early Cretaceous of Burma.

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Cretaceous

The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period million years ago (mya) to the beginning of the Paleogene Period mya.

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Crioceratites

Crioceratites is an ammonite genus from the Early Cretaceous belonging to the Ancyloceratoidea.

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Crossognathiformes

Crossognathiformes were an extinct order of prehistoric ray-finned fish.

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Crowsnest Formation

The Crowsnest Formation, also called the Crowsnest Volcanics, is a geological formation in southwestern Alberta, Canada, on the southwestern margin of the Western Canada Sedimentary Basin.

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Cruralispennia

Cruralispennia is an extinct genus of enantiornithean bird.

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Crustacean larva

Crustaceans may pass through a number of larval and immature stages between hatching from their eggs and reaching their adult form.

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Cryptoclididae

Cryptoclididae is a family of medium-sized plesiosaurs that existed from the middle Jurassic to the early Cretaceous period.

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Ctenochasmatidae

Ctenochasmatidae is a group of pterosaurs within the suborder Pterodactyloidea.

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Ctenochasmatoidea

Ctenochasmatoidea is a group of early pterosaurs within the suborder Pterodactyloidea.

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Ctenothrissiformes

Ctenothrissiformes were an extinct order of prehistoric ray-finned fish.

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Cuche Formation

The Cuche Formation (Formación Cuche, Cc) is a geological formation of the Floresta Massif, Altiplano Cundiboyacense in the Eastern Ranges of the Colombian Andes.

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Cuspilongus

Cuspilongus is an extinct genus of parasitic wasp in the sawfly family Cephidae.

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Cuspirostrisornis

Cuspirostrisornis is a genus of enantiornithean bird.

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Cyathea cranhamii

Cyathea cranhamii is an extinct species of tree fern.

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Cycad

Cycads are seed plants with a long fossil history that were formerly more abundant and more diverse than they are today.

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Cycadales

Cycadales is an order of seed plants that includes all the extant cycads.

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Cylindroteuthis

Cylindroteuthis is a genus of belemnite that lived from the Early Jurassic to the Early Cretaceous.

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Cyllonium

Cyllonium is a genus of extinct insects.

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Dakosaurus

Dakosaurus is an extinct genus within the family Metriorhynchidae that lived during the Late Jurassic and Early Cretaceous.

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Dakota Formation

The Dakota Formation (also Dakota Sandstone and Cockrum Sandstone, more formally the Dakota Group) is a geologic formation composed of sedimentary rocks deposited on the eastern side of the Late Cretaceous Western Interior Seaway.

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Dakotadon

Dakotadon is a genus of iguanodont dinosaur from the Barremian-age Lower Cretaceous Lakota Formation of South Dakota, USA, known from a partial skull.

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Dalianraptor

Dalianraptor (meaning "Dalian thief") is a genus of prehistoric bird that lived in China about 120 million years ago, during the early Cretaceous Period.

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Daliansaurus

Daliansaurus (meaning "Dalian reptile") is a genus of small troodontid theropod dinosaur, measuring approximately long, from the Early Cretaceous of China.

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Dalingheornis

Dalingheornis is a genus of enantiornithean birds which lived during the early Cretaceous period, about 122 Ma ago, and are known from a single juvenile fossil found in the upper part of the Yixian Formation at Dawangzhangzi, Liaoning province, People's Republic of China.

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Dalinghosaurus

Dalinghosaurus (often incorrectly spelled "Dalinghesaurus") is an extinct genus of lizards, first described in 1998 by S.A. Ji of the Peking University Department of Geology.

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Dapingfangornis

Dapingfangornis was an enantiornithine bird.

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Darwin from Insectivorous Plants to Worms

Between 1873 and 1882, the life and work of Charles '''Darwin''' from Insectivorous Plants to Worms continued with investigations into carnivorous and climbing plants that had begun with his previous work.

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Darwinsaurus

Darwinsaurus (meaning "Darwin's lizard") is a genus of herbivorous styracosternan ornithopod dinosaur.

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Dashuigou Formation

The Dashuigou Formation is a geological formation in Inner Mongolia, north China, whose strata date back to the Early Cretaceous period.

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Dastilbe

Dastilbe is an extinct genus of prehistoric bony fish from the Aptian.

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Datanglong

Datanglong is an extinct genus of carcharodontosaurian theropod belonging to the Tetanurae.

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Dauletabad gas field

The Dauletabad Gas Field (also Döwletabat, Dauletabad-Donmez, and until 1991 known as Sovietabad) is a large natural gas field located in Mary, Mary province, Turkmenistan.

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Daxiatitan

Daxiatitan is a genus of titanosaur dinosaur from the Lower Cretaceous of Lanzhou Basin, Gansu Province, northwestern China.

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Děvín in Moravia (Pavlov Hills)

Děvín Mayden Berg; (Girl´s hill or Maiden hill); (549 metres) is the highest (double-peaked) mountain of Pavlov Hills, northern part of (Mikulov Highlands), Moravia Czech Republic.

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Deinocheiridae

Deinocheiridae is a family of ornithomimosaurian dinosaurs, living in Asia from the Albian until the Maastrichtian.

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Deinonychus

Deinonychus (δεινός, 'terrible' and ὄνυξ, genitive ὄνυχος 'claw') is a genus of carnivorous dromaeosaurid coelurosaurian theropod dinosaur with one described species, Deinonychus antirrhopus.

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Del Rio Clay

The Del Rio Clay is a geologic formation in Texas.

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Delapparentia

Delapparentia is a genus of iguanodont dinosaur from the Early Cretaceous period of Galve, Teruel Province, Spain.

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Deltatheridiidae

Deltatheridiidae is an extinct family of basal carnivorous metatherians that lived in the Cretaceous and were closely related to marsupials.

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Deltatheroida

Deltatheroida is an extinct group of basal metatherians that were distantly related to modern marsupials.

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Demandasaurus

Demandasaurus (meaning "Demanda lizard") is a genus of rebbachisaurid sauropod dinosaur from early Cretaceous (late Barremian – early Aptian stage) deposits of Spain.

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Desmatochelys padillai

Desmatochelys padillai is an extinct species of sea turtle described in 2015 and belongs to the family Protostegidae.

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Desmoceras

Desmoceras is a genus of ammonites belonging to the family Desmoceratidae.

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Detailed logarithmic timeline

This timeline shows the whole history of the universe, the Earth, and mankind in one table.

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Diamantinasaurus

Diamantinasaurus is an extinct genus of non-lithostrotian titanosaurian sauropod from Australia that lived during the early Late Cretaceous, about 94 million years ago.

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Dicraeosauridae

Dicraeosauridae is a family of diplodocoid sauropods who are the sister group to Diplodocidae.

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Dictyochales

Dictyochales (Silicoflagellates, or Dictyochophyceae sensu stricto) are a small group of unicellular heterokont algae, found in marine environments.

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Dictyoolithus

Dictyoolithus is an oogenus of dinosaur egg from the Cretaceous of China.

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Dictyothyris

Dictyothyris is an extinct genus of brachiopods that lived from the Middle Jurassic to the Early Cretaceous in Europe.

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Dicynodont

Dicynodontia is a taxon of anomodont therapsids or synapsids with beginnings in the mid-Permian, which were dominant in the Late Permian and continued throughout the Triassic, with a few possibly surviving into the Early Cretaceous.

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Dilong paradoxus

Dilong (帝龍, which means 'emperor dragon') is a genus of basal tyrannosauroid dinosaur.

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Dingavis

Dingavis is an extinct genus of ornithuromorph bird from the Early Cretaceous of present-day China.

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Dinodocus

Dinodocus (meaning "terrible beam") is the name of a genus of sauropod dinosaur, named by Richard Owen in 1884.

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Dinosaur (Disney's Animal Kingdom)

Dinosaur is a dark ride EMV attraction at Disney's Animal Kingdom in Walt Disney World, Lake Buena Vista, Florida.

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Dinosaur Beds

The Dinosaur Beds is a geological formation in Malawi whose strata date back to the Early Cretaceous.

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Dinosaur paleobiogeography

Dinosaur paleobiogeography is the study of dinosaur geographic distribution, based on evidence in the fossil record.

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Dinosaur Zoo

Dinosaur Zoo is an educational app built as a collaboration between Swedish-based Dotnamestudios and UK-based Thumbspark interactive and was first released for Apple's iOS.

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Dinosaur!

Dinosaur! is an American television documentary about dinosaurs.

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Dinosaurs of Romania

The dinosaurs of Romania are exclusively Cretaceous.

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Dinosaurs: Giants of Patagonia

Dinosaurs: Giants of Patagonia is a 2007 film about life in the Early Cretaceous, Patagonia.

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Diplodocid

Diplodocids, or members of the family Diplodocidae ("double beams"), are a group of sauropod dinosaurs.

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Diplodocinae

Diplodocinae is an extinct subfamily of diplodocid sauropods that existed from the Late Jurassic to Early Cretaceous of North America, Europe and South America, about 155 to 136.4 million years ago.

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Diplosaurus

Diplosaurus is an extinct genus of goniopholidid mesoeucrocodylian.

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Dipluridae

The family Dipluridae, known as curtain-web spiders (or confusingly with other distantly related ones as funnel-web tarantulas) are a group of spiders in the infraorder Mygalomorphae, that have two pairs of booklungs, and chelicerae (fangs) that move up and down in a stabbing motion.

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Domeykodactylus

Domeykodactylus was a genus of dsungaripteroid pterodactyloid pterosaur from the Early Cretaceous-age Quebrada de la Carreta of Antofagasta, Chile.

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Dongbeititan

Dongbeititan is a genus of sauropod dinosaur from the Early Cretaceous-age Yixian Formation of Beipiao, Liaoning, China.

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Donodon

Donodon is an extinct genus of mammal from the Early Cretaceous (?Berriasian) Ksar Metlili Formation of Talssint, Morocco.

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Doratorhynchus

Doratorhynchus is a generic replacement name for Pterodactylus validus, in 1875 suggested by Harry Govier Seeley. Today it is considered a nomen vanum. In 1870 Richard Owen named Pterodactylus validus based on holotype NHMUK 40653, a thirty centimeter long partial wing finger phalanx from the Purbeck Limestone (Britain), identified as that of a pterosaur. The specific name means "strong" in Latin. In 1868 Seeley had obtained a vertebra and lower jaw (catalogued CAMSM J.5340 and J.5339 respectively) from a quarry near Langton Matravers; in 1869 he had informally named these "Pterodactylus macrurus". In 1875, he concluded that the remains were conspecific with P. validus (he re-identified the vertebra he had previously considered a caudal as belonging to the cervical region), erecting a separate genus name to the species: Doratorhynchus, from Greek dory, "lance" and rhynchos, "snout", referring to the jaw form, so that the full species name became Doratorhynchus validus. Later the species was sometimes assigned to other genera, resulting in the new combinations Ornithocheirus validus (Newton 1888) and Cycnorhamphus validus (Owen 1870). CAMSM J.5340 indicated that very long-necked forms already lived in the Late Jurassic (Tithonian) or Early Cretaceous (Berriasian). It was suggested that Doratorhynchus was a basal member of Azhdarchidae. However, in 1995 Stafford Howse and Andrew R. Milner concluded that Doratorhynchus is a nomen vanum because they noted that the phalanx was not diagnostic enough anyway and only assignable to Pterodactyloidea incertae sedis. They assigned CAMSM J.5339 to Gnathosaurus as G. macrurus and CAMSM J.5340 to an indeterminate ctenochasmatid.

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Dorsetochelys

Dorsetochelys is an extinct genus of turtle from the Early Cretaceous of southern England and northwestern Germany.

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Dorsetodon

Dorsetodon is an extinct genus of mammal from the Early Cretaceous (Berriasian) Purbeck Group of Britain.

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Dracopelta

Dracopelta (from Latin draco, dragon and Greek πέλτη, peltē, "small shield") was an ankylosaurian dinosaur from Portugal, described by Peter Galton in 1980.

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Dromaeosauridae

Dromaeosauridae is a family of feathered theropod dinosaurs.

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Dromaeosaurinae

Dromaeosaurinae is a subfamily of Dromaeosauridae.

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Dromaeosauroides

Dromaeosauroides is a genus of dromaeosaurid theropod dinosaur from the Early Cretaceous of what is now Denmark.

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Dry Tortugas National Park

Dry Tortugas National Park is a national park in the United States about west of Key West in the Gulf of Mexico.

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Dryolestoidea

Dryolestoidea is an extinct clade of Mesozoic mammals that only contains two orders.

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Dryosauridae

Dryosaurids were primitive iguanodonts.

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Dryosaurus grandis

"Dryosaurus" grandis is a dubious species of ornithomimosaur dinosaur known from remains found in the Arundel Formation of Maryland.

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Dsungaripteridae

Dsungaripteridae is a group of pterosaurs within the suborder Pterodactyloidea.

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Dsungaripterus

Dsungaripterus was a genus of pterosaur, with an average wingspan of.

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Dunhuangia

Dunhuangia is a bird genus, belonging to the Enantiornithes, which during the Early Cretaceous lived in the area of present China.

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Dyskritodon

Dyskritodon ("tooth of unknown origin", from Greek δυσκρίτος, "dyskritos"Sigogneau-Russell, D. (1995) Two possibly aquatic triconodont mammals from the Early Cretaceous of Morocco. Acta Palaeontologica Polonica. 40(2), p.149-162.) is a genus of extinct mammal from the Lower Cretaceous of Morocco, and possibly the Early Jurassic of India.

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Eastern Hills, Bogotá

The Eastern Hills (Spanish: Cerros Orientales) are a chain of hills forming the eastern natural boundary of the Colombian capital Bogotá.

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Eastern Yar

The River Yar on the Isle of Wight, England, rises in a chalk coomb in St. Catherine's Down near Niton, close to the southern tip of the island.

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Echinodon

Echinodon (pronounced eh-KY-no-don) meaning "hedgehog tooth" in reference to the spines on its teeth (Greek εχινος, echinos.

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Ecprepaulax

Ecprepaulax is a Lower Cretaceous mammal from Portugal.

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Edentosuchus

Edentosuchus is a genus of protosuchian crocodylomorph.

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Edgarosaurus

Edgarosaurus is a genus of polycotylid plesiosaur, containing one species, E. muddi.

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Edwards Group

The Edwards Group is a geologic group in Texas.

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Eel

An eel is any ray-finned fish belonging to the order Anguilliformes, which consists of four suborders, 20 families, 111 genera and about 800 species.

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Ejinhoro Formation

The Ejinhoro Formation is a geological formation in Inner Mongolia, north China, whose strata date back to the Early Cretaceous period (Aptian/Albian age.Sereno, P.C. (2010). "Taxonomy, cranial morphology, and relationships of parrot-beaked dinosaurs (Ceratopsia: Psittacosaurus)." New Perspectives on Horned Dinosaurs. Bloomington: Indiana, 21-58. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 563-570..

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EK

EK or Ek may refer to.

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El Collado Formation

The El Collado Formation is a geological formation in Cuenca, Spain whose strata date back to the Early Cretaceous.

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El Peñón, Cundinamarca

El Peñón is a municipality and town of Colombia in the department of Cundinamarca.

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Elanodactylus

Elanodactylus (meaning "Kite finger") is a genus of ctenochasmatid pterodactyloid pterosaur from the Early Cretaceous (early Aptian) Yixian Formation of Liaoning, China.

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Elk Formation

The Elk Formation is a stratigraphic unit of the Western Canada Sedimentary Basin that is present in southeastern British Columbia and southwestern Alberta.

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Ellerslie Member

The Ellerslie Member is a stratigraphical unit of Early Cretaceous age in the Western Canadian Sedimentary Basin.

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Elongatoolithidae

Elongatoolithidae is an oofamily of fossil eggs, representing the eggs of oviraptorosaurs (with the exception of the avian Ornitholithus).

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Elopiformes

The Elopiformes are the order of ray-finned fish including the tarpons, tenpounders, and ladyfish, as well as a number of extinct types.

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Elosuchus

Elosuchus is an extinct genus of neosuchian crocodyliform that lived during the Early Cretaceous of what is now North Africa (Morocco and Algeria).

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Elrhaz Formation

The Elrhaz Formation is a geological formation in Niger, central Africa.

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Elrhazosaurus

Elrhazosaurus is a genus of basal iguanodontian dinosaur, known from isolated bones found in Lower Cretaceous rocks of Niger.

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Embasaurus

Embasaurus (Emba lizard) is a genus of theropod dinosaur from the Early Cretaceous period.

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Emericiceras

Emericiceras is an ammonite genus from the Early Cretaceous belonging to the Ancyloceratoidea.

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Enantiornithes

Enantiornithes is a group of extinct avialans ("birds" in the broad sense), the most abundant and diverse group known from the Mesozoic era.

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Encisco Group

The Encisco Group is a geological formation in La Rioja, Spain whose strata date back to the Early Cretaceous.

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Entomophily

Entomophily or insect pollination is a form of pollination whereby pollen of plants, especially but not only of flowering plants, is distributed by insects.

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Entropezites

Entropezites is an extinct monotypic genus of hypermycoparasitic fungus in the order Hypocreales.

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Eoalulavis

Eoalulavis (from the Ancient Greek: ''Éōs'', "dawn"; alula, "bastard wing"; avis, "bird") is a monotypic genus of enantiornithean bird that lived during the Barremian, in the Lower Cretaceous around 125 million years ago.

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Eoazhdarcho

Eoazhdarcho is a genus of azhdarchoid pterodactyloid pterosaur named in 2005 by Chinese paleontologists Lü Junchang and Ji Qiang.

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Eobaatar

Eobaatar is a genus of extinct mammal from the Lower Cretaceous of Mongolia, Spain and England.

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Eobaataridae

Eobaataridae is a family of fossil mammal within the order Multituberculata.

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Eobelinae

Eobelinae are an extinct beetle subfamily that throve in the late Mesozoic.

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Eocarcharia

Eocarcharia (meaning "dawn shark") is a genus of carcharodontosaurid theropod dinosaur from the Early Cretaceous Elrhaz Formation that lived in the Sahara 112 million years ago, in what today is the country of Niger.

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Eocathayornis

Eocathayornis is a genus of enantiornithean birds that was probably more basal or "primitive" than related genera Sinornis and Cathayornis.

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Eoconfuciusornis

Eoconfuciusornis a genus of extinct bird that lived 131 Ma ago, in the Early Cretaceous of China.

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Eoenantiornis

Eoenantiornis is a genus of enantiornithean birds which lived during the early Cretaceous period (124.6 Ma ago).

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Eogranivora

Eogranivora is a bird genus, belonging to the Ornithuromorpha, that lived in the area of present-day China during the Early Cretaceous.

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Eolepidopterix

Eolepidopterix is an extinct genus of moths within the family Eolepidopterigidae, containing one species, Eolepidopterix jurassica, which is known from Russia.

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Eomaia

Eomaia ("dawn mother") is a genus of extinct fossil mammals containing the single species Eomaia scansoria, discovered in rocks that were found in the Yixian Formation, Liaoning Province, China, and dated to the Barremian Age of the Lower Cretaceous about.

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Eopteranodon

Eopteranodon (meaning "dawn Pteranodon (toothless wing)") is a genus of azhdarchoid pterodactyloid pterosaur from the Aptian-age Lower Cretaceous Yixian Formation of Beipaio City, Liaoning, China.

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Eosipterus

Eosipterus is an extinct genus of pterosaur from the Early Cretaceous of Liaoning, China.

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Eotyrannus

Eotyrannus (meaning "dawn tyrant") is a genus of tyrannosauroid theropod dinosaur hailing from the Early Cretaceous Wessex Formation beds, included in Wealden Group, located in the southwest coast of the Isle of Wight, United Kingdom.

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Epoch (geology)

In geochronology, an epoch is a subdivision of the geologic timescale that is longer than an age but shorter than a period.

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Equijubus

Equijubus (Mǎzōng meaning "horse mane" after the area Mǎzōng Mountain 马鬃山 in which it was found), is a genus of herbivorous hadrosauroid dinosaur from the Early Cretaceous (Aptian stage) of northwestern China.

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Erectopus

Erectopus is a basal allosauroid theropod from the Lower Cretaceous of France.

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Erketu

Erketu is the name given to a genus of dinosaur from the Early Cretaceous (Cenomanian - Santonian).

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Eromanga, Queensland

Eromanga is a small town and locality in the Shire of Quilpie in South West Queensland, Australia.

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Eromangasaurus

Eromangasaurus is an extinct genus of elasmosaurid known from northern Queensland of Australia.

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Eryonidae

Eryonidae is a family of fossil decapod crustaceans which lived from the Upper Triassic to the Lower Cretaceous.

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Eryopiformes

Eryopiformes is a group of rhachitomi temnospondyl amphibians.

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Escucha Formation

The Escucha Formation is a geological formation in La Rioja, Spain whose strata date back to the Early Cretaceous.

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Euavialae

Euavialae (meaning "true winged birds") is a group of birds which includes all avialan species more closely related to modern birds, than to the primitive, long-tailed birds Archaeopteryx and Jeholornis.

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Eucamerotus

Eucamerotus (meaning "well-chambered" in reference to the hollows of the vertebrae) was a genus of sauropod dinosaur from the Barremian-age Lower Cretaceous Wessex Formation (Wealden) of the Isle of Wight, England.

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Eucercosaurus

Eucercosaurus is the name given to a genus of dinosaur from the Early Cretaceous.

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Euctenochasmatia

Euctenochasmatia is an extinct group of pterodactyloid pterosaurs.

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Eudicots

The eudicots, Eudicotidae or eudicotyledons are a clade of flowering plants that had been called tricolpates or non-magnoliid dicots by previous authors.

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Eudromaeosauria

Eudromaeosauria ("true dromaeosaurs") is a subgroup of terrestrial dromaeosaurid theropod dinosaurs.

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Euhelopus

Euhelopus is a genus of titanosauriform sauropod dinosaur that lived between 129 and 113 million years ago during the Early Cretaceous in what is now Shandong Province in China.

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Eumeralla Formation

The Eumeralla Formation is a geological formation in Victoria, Australia whose strata date back to the Early Cretaceous.

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Euornithes

Euornithes (from Greek ευόρνιθες meaning "true birds") is a natural group which includes the most recent common ancestor of all avialans closer to modern birds than to Sinornis.

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Eupterodactyloidea

Eupterodactyloidea (meaning "true Pterodactyloidea") is an extinct group of pterodactyloid pterosaurs that existed from the earliest Early Cretaceous to the latest Late Cretaceous (Berriasian to Maastrichtian stages).

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Eurolimnornis

Eurolimnornis is the name given to a monotypic genus of pterosaurs from the Early Cretaceous.

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Europatitan

Europatitan is a genus of somphospondylan sauropod from the Early Cretaceous Castrillo de la Reina Formation of Iberia, known from a relatively completely specimen discovered in the early 2000s.

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Europejara

Europejara is a genus of tapejarid pterosaur from the Early Cretaceous of Spain.

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Europelta

Europelta is an extinct genus of struthiosaurine nodosaurid dinosaur known from the Early Cretaceous (early Albian stage) lower Escucha Formation of Teruel Province, northeastern Spain.

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Eurycephalella

Eurycephalella is an extinct genus of frog which existed in what is now Brazil during the lower Cretaceous period.

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Eusuchia

The Eusuchia ("true crocodiles") are a clade of crocodylomorphs that first appears in the Early Cretaceous with Hylaeochampsa.

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Eutemnospondyli

Eutemnospondyli (meaning "true Temnospondyli") is a clade of temnospondyl amphibians that includes most temnospondyls except edopoids.

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Eutheria

Eutheria (from Greek εὐ-, eu- "good" or "right" and θηρίον, thēríon "beast" hence "true beasts") is one of two mammalian clades with extant members that diverged in the Early Cretaceous or perhaps the Late Jurassic.

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Eutriconodonta

Eutriconodonta is an order of early mammals.

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Evolution of mammals

The evolution of mammals has passed through many stages since the first appearance of their synapsid ancestors in the late Carboniferous period.

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Evolutionary history of life

The evolutionary history of life on Earth traces the processes by which both living organisms and fossil organisms evolved since life emerged on the planet, until the present.

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Fairlight, East Sussex

Fairlight is a village in East Sussex, England within Rother district, three miles (5 km) to the east of Hastings.

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Fairyfly

The Mymaridae, commonly known as fairyflies or fairy wasps, are a family of chalcid wasps found in temperate and tropical regions throughout the world.

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Falcarius

Falcarius is a genus of therizinosaurian dinosaur found in the Cretaceous of east-central Utah, United States.

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Farak Formation

The Farak Formation is a geological formation in Niger, central Africa.

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Faris Caves

Faris Caves are a series of artificially excavated caves located along the Smoky Hill River in central Ellsworth County, Kansas.

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Fauna of Australia

The fauna of Australia consists of a huge variety of animals; some 83% of mammals, 89% of reptiles, 24% of fish and insects and 93% of amphibians that inhabit the continent are endemic to Australia.

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Feathered dinosaur

For over 150 years, since scientific research began on dinosaurs in the early 1800s, dinosaurs were generally believed to be most closely related to squamata ("scaled reptiles"); the word "dinosaur", coined in 1842 by paleontologist Richard Owen, comes from the Greek for "fearsome lizard".

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Feathered Dinosaurs of China

Feathered Dinosaurs of China is a documentary book written and illustrated by Paleoartist, Gregory Wenzel.

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Feilongus

Feilongus is an extinct genus of ctenochasmatoid or ornithocheiroid pterodactyloid pterosaur from the Barremian-Aptian-age Lower Cretaceous Yixian Formation of Beipiao, Liaoning, China.

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Feitianius

Feitianius is a bird genus, belonging to the Enantiornithes, that during the Early Cretaceous lived in the area of modern China.

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Feitianshan Formation

The Feitianshan Formation is a geological formation in Japan.

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Flickia

Flickia is an ammonite genus from the Upper Albian stage of the Early Cretaceous.

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Flindersicthys

Flindersicthys is an extinct genus of prehistoric bony fish that lived during the Albian stage of the Early Cretaceous epoch.

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Florianópolis Formation

The Florianópolis Formation (Formacão Florianópolis) is a geological formation of the Santos Basin offshore of the Brazilian states of Rio de Janeiro, São Paulo, Paraná and Santa Catarina.

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Flowering plant

The flowering plants, also known as angiosperms, Angiospermae or Magnoliophyta, are the most diverse group of land plants, with 416 families, approximately 13,164 known genera and c. 295,383 known species.

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Fogo Seamounts

The Fogo Seamounts, also called the Fogo Seamount chain, are a group of seamounts located about offshore of Newfoundland and southwest of the Grand Banks of Newfoundland.

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Forfexopterus

Forfexopterus (meaning "scissor wings") is a genus of archaeopterodactyloid pterosaur from the Early Cretaceous Jiufotang Formation in China.

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Fornicatus

Fornicatus is an extinct genus of ground shark from the Early Cretaceous age of Austria.

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Fort d'Issy

Fort d'Issy was one of the fortifications of the city of Paris, France, built between 1841 and 1845.

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Fort St. John Group

The Fort St.

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Fowl

Fowl are birds belonging to one of two biological orders, namely the gamefowl or landfowl (Galliformes) and the waterfowl (Anseriformes).

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Frank Dawson Adams

Frank Dawson Adams (September 17, 1859 – December 26, 1942) was a Canadian geologist.

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Frenguelliceras

Frenguelliceras is an ammonite genus from the Lower Cretaceous included in the perisphinctoid family Neocomitidae named by Leanza in 1945.

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Fruitadens

Fruitadens is a genus of heterodontosaurid dinosaur.

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Fueguino

Fueguino is a volcanic field in Chile.

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Fukuiraptor

Fukuiraptor ("thief of Fukui") was a medium-sized megaraptoran theropod dinosaur of the Early Cretaceous (Barremian) that lived in what is now Japan.

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Fukuisaurus

Fukuisaurus (meaning "Fukui lizard") is a genus of herbivorous dinosaur from the Early Cretaceous.

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Fukuititan

Fukuititan is a genus of titanosauriform sauropod dinosaur that lived in the Early Cretaceous (Barremian age) in what is now Japan.

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Fukuivenator

Fukuivenator ("hunter of Fukui Prefecture") is an extinct genus of coelurosaurian theropod dinosaur from the Early Cretaceous of Japan.

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Fulgurotherium

Fulgurotherium (meaning "Lightning Beast") is the name given to a genus of dinosaur from the Early Cretaceous (Albian).

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Fusuisaurus

Fusuisaurus (meaning "Fusui lizard" from the name of the county where it was discovered) is a genus of sauropod dinosaur from the Early Cretaceous of China.

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Gadiformes

Gadiformes are an order of ray-finned fish, also called the Anacanthini, that includes the cod and its allies.

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Gallodactylidae

Gallodactylidae is a group of pterosaurs within the suborder Pterodactyloidea.Gallodactylids differed from other related pterosaurs in several distinct features, including fewer than 50 teeth present only in the jaw tips, and rounded crests present on the rear portion of the skull and jaws but not near the ends of their snouts.

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Gallornis

Gallornis is a genus of prehistoric birds from the Cretaceous.

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Galve, Teruel

Galve is a municipality located in the province of Teruel, Aragon, Spain.

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Galveodon

Galveodon is an extinct, Spanish mammal of the Lower Cretaceous.

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Galverpeton

Galverpeton is an extinct genus of prehistoric salamander.

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Galvesaurus

Galvesaurus or Galveosaurus is a genus of extinct sauropod dinosaur from the Late Jurassic or Early Cretaceous period.

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Gambier Group

The Gambier Group is an Early Cretaceous aged geologic group in the southern Coast Mountains of British Columbia, Canada.

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Gansus

Gansus is a genus of aquatic birds that lived during the Aptian age of the Early Cretaceous (Aptian-Albian) period in what are now Gansu and Liaoning provinces, western China.

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Gantheaume Point

Gantheaume Point is a promontory about from Broome, Western Australia.

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Gassendiceras

Gassendiceras is an extinct genus of ammonoid cephalopods belonging to the family Hemihoplitidae.

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Gasterosteiformes

Gasterosteiformes is an order of ray-finned fishes that includes the sticklebacks and relatives.

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Gastonia (dinosaur)

Gastonia is a genus of herbivorous ankylosaurian dinosaur from the Early Cretaceous of North America, around 125 million years ago.

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Gastrolith

A gastrolith, also called a stomach stone or gizzard stones, is a rock held inside a gastrointestinal tract.

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Gaudryceratidae

Gaudryceratidae is a family belonging to the extinct ammonoid suborder Lytoceratina that lived from the Barremian of the Lower Cretaceous to the Maastrichtian of the Upper Cretaceous.

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Gaviiformes

Gaviiformes is an order of aquatic birds containing the loons or divers and their closest extinct relatives.

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Gegepterus

Gegepterus was a genus of ctenochasmatid pterosaur from the Early Cretaceous-age Yixian Formation of Liaoning, China.

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Gekkonomorpha

Gekkonomorpha is a clade of lizards that includes geckos and their closest relatives.

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Gekkota

Gekkota is an infraorder of squamate reptiles in the suborder Scleroglossa, comprising all geckos and the limbless "snake-lizards" of family Pygopodidae.

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Geminiraptor

Geminiraptor is a genus of troodontid dinosaur.

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Genusaurus

Genusaurus (meaning "knee lizard") is a genus of dinosaur from the Early Cretaceous.

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Genyodectes

Genyodectes ("jaw bite", from the Greek words genys ("jaw") and dektes ("bite")) is a genus of ceratosaurian theropod dinosaur from the Lower Cretaceous (Aptian) of South America.

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Geography of Dorset

Dorset is a county located in the middle of the south coast of England.

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Geologic time scale

The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time.

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Geology of Arkansas

The geology of Arkansas includes deep 1.4 billion year old igneous crystalline basement rock from the Proterozoic known only from boreholes, overlain by extensive sedimentary rocks and even some volcanic rocks.

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Geology of Cameroon

The geology of Cameroon is almost universally Precambrian metamorphic and igneous basement rock, formed in the Archean as part of the Congo Craton and the Central African Mobile Zone and covered in laterite, recent sediments and soils.

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Geology of Fujian

Fujian is a south eastern coastal province of China.

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Geology of Gabon

Gabon is situated at the northwestern margin of the Congo Craton—a region of stable, ancient crust-- and preserves very ancient rock units across 75% of the country, with overlying sedimentary units from the Cretaceous and other more recent periods.

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Geology of Germany

The geology of Germany is heavily influenced by several phases of orogeny in the Paleozoic and the Cenozoic, by sedimentation in shelf seas and epicontinental seas and on plains in the Permian and Mesozoic as well as by the Quaternary glaciations.

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Geology of Ghana

The geology of Ghana is primarily very ancient crystalline basement rock, volcanic belts and sedimentary basins, affected by periods of igneous activity and two major orogeny mountain building events.

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Geology of Great Britain

The geology of Great Britain is renowned for its diversity.

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Geology of Iran

The main points that are discussed in the geology of Iran include the study of the geological and structural units or zones; stratigraphy; magmatism and igneous rocks; ophiolite series and ultramafic rocks; and orogenic events in Iran.

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Geology of Libya

The geology of Libya formed on top of deep and poorly understood Precambrian igneous and metamorphic crystalline basement rock.

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Geology of Madeira

Madeira began to form more than 100 million years ago in the Early Cretaceous, although most of the island has formed in the last 66 million years of the Cenozoic, particularly in the Miocene and Pliocene.

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Geology of Malawi

The geology of Malawi formed on extremely ancient crystalline basement rock, which was metamorphosed and intruded by igneous rocks during several orogeny mountain building events in the past one billion years.

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Geology of Mauritania

The geology of Mauritania is built on more than two billion year old Archean crystalline basement rock in the Reguibat Shield of the West African Craton, a section of ancient and stable continental crust.

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Geology of Mayotte

As part of the Comoros island chain in the Mozambique Channel, the geology of Mayotte is virtually the same as the geology of the Comoros, the rest of the island chain which is independent of France.

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Geology of Myanmar

The geology of Myanmar is shaped by dramatic, ongoing tectonic processes controlled by shifting tectonic components as the Indian plate slides northwards and towards southeastern Asia.

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Geology of Niger

The geology of Niger comprises very ancient igneous and metamorphic crystalline basement rocks in the west, more than 2.2 billion years old formed in the late Archean and Proterozoic eons of the Precambrian.

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Geology of Swaziland

The geology of Swaziland formed beginning 3.6 billion years ago, in the Archean Eon of the Precambrian.

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Geology of the Dallas–Fort Worth Metroplex

Dallas–Fort Worth sits above Cretaceous-aged strata, dates ranging from ≈145-66 Ma (million years ago).

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Geology of the Democratic Republic of the Congo

The geology of the Democratic Republic of the Congo, commonly abbreviated as DRC, also known as Congo-Kinshasa and formerly as Zaire and Belgian Congo, is extremely old, on the order of several billion years for many rocks.

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Geology of the Raukumara Region

The Raukumara Region of New Zealand corresponds to the East Cape of the North Island, and associated mountain ranges.

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Geology of the Republic of the Congo

The geology of the Republic of the Congo, also known as Congo-Brazzaville, to differentiate from the Democratic Republic of the Congo, formerly Zaire, includes extensive igneous and metamorphic basement rock, some up to two billion years old and sedimentary rocks formed within the past 250 million years.

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Geology of the Waikato-King Country Region

The Waikato and King Country regions of New Zealand are built upon a basement of greywacke rocks, which form many of the hills.

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George Burr Richardson

George Burr Richardson, MS, PhD (1872 - 1949) was a geologist who, among other endeavors, participated in extensive field work for the United States Geological Survey (USGS) in Alaska, Pennsylvania, California, Texas, Colorado, and Utah.

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Georgetown Formation

The Georgetown Formation is a geologic formation in Mexico.

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Geosaurinae

Geosaurinae is a subfamily of metriorhynchid crocodyliforms from the Middle Jurassic to the Early Cretaceous (Bajocian - Valanginian) of Europe, North America and South America.

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Geosaurus

Geosaurus is an extinct genus of marine crocodyliform within the family Metriorhynchidae, that lived during the Late Jurassic and the Early Cretaceous.

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Gerhardodon

Gerhardodon is an extinct genus of mammal from the Lower Cretaceous of southern England.

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Gething Formation

Gething Formation is a stratigraphic unit of Lower Cretaceous (Aptian) age in the Western Canada Sedimentary Basin.

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Gialo High

The Gialo High is a relatively small horst block in the eastern Sirte Basin of the Libyan oil fields.

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Gideon Mantell

Gideon Algernon Mantell MRCS FRS (3 February 1790 – 10 November 1852) was an English obstetrician, geologist and palaeontologist.

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Gideonmantellia

Gideonmantellia is an extinct genus of basal ornithopod dinosaur known from the Early Cretaceous (Barremian stage) of Galve, Province of Teruel, Spain.

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Giganotosaurus

Giganotosaurus is a genus of theropod dinosaur that lived in what is now Argentina, during the early Cenomanian age of the Late Cretaceous period, approximately 98 to 97 million years ago.

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Gilmoreosaurus

Gilmoreosaurus is the name given to a genus of dinosaur from the Cretaceous of Asia.

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Ginkgo

Ginkgo is a genus of highly unusual non-flowering plants.

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Ginkgo biloba

Ginkgo biloba, commonly known as ginkgo or gingko (both pronounced), also known as the maidenhair tree, is the only living species in the division Ginkgophyta, all others being extinct.

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Giraffatitan

Giraffatitan, meaning "giant giraffe", is a genus of sauropod dinosaur that lived during the late Jurassic Period (Kimmeridgian–Tithonian stages).

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Glacier Bay National Park and Preserve

Glacier Bay National Park and Preserve is an American national park located in Southeast Alaska west of Juneau.

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Gladocephaloideus

Gladocephaloideus is a genus of gallodactylid ctenochasmatoid pterosaur from the Early Cretaceous of western Liaoning, China.

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Gladstone Formation

The Gladstone Formation is a stratigraphic unit of Early Cretaceous (Aptian) age in the Western Canada Sedimentary Basin.

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Glen Rose Formation

The Glen Rose Formation is a shallow marine to shoreline geological formation from the lower Cretaceous period exposed over a large area from South Central to North Central Texas.

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Glyptops

Glyptops (Greek for "grooved face") is an extinct genus of cryptodire turtle dating from the Late Jurassic and Early Cretaceous periods 155 to 99 m.y.a. Fossils have been found in South Dakota, Wyoming, Colorado, Utah, New Mexico, Oklahoma, and Texas from both the Morrison and Cedar Mountain formations.

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Glyptostrobus europaeus

Glyptostrobus europaeus is an extinct conifer species of the family Cupressaceae that is found as fossils throughout the Northern Hemisphere.

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Gnetophyta

Gnetophyta is a division of plants, grouped within the gymnosperms (which also includes conifers, cycads, and ginkgos), that consists of some 70 species across the three relict genera: Gnetum (family Gnetaceae), Welwitschia (family Welwitschiaceae), and Ephedra (family Ephedraceae).

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Gobiconodon

Gobiconodon is an extinct genus of carnivorous mammal from the early Cretaceous.

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Gobiconodontidae

Gobiconodontidae is a family of extinct mammals that ranged from the mid-Jurassic to the early Late Cretaceous, though most common during the Early Cretaceous.

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Gobiosuchidae

Gobiosuchidae is a family of Cretaceous crocodyliforms known from Mongolia and Spain.

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Gobipterygidae

Gobipterygidae is a family of extinct enantiornithine birds known from the Cretaceous of Asia.

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Gondwana

Gondwana, or Gondwanaland, was a supercontinent that existed from the Neoproterozoic (about 550 million years ago) until the Carboniferous (about 320 million years ago).

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Gongpoquansaurus

Gongpoquansaurus (meaning "Gongpoquan reptile") is an extinct genus of basal hadrosauroid dinosaur that was not formally named until 2014, while the name was a nomen nudum for many years previously.

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Goniopholididae

Goniopholididae is an extinct family of moderate-sized semi-aquatic crocodyliforms superficially similar to living crocodiles (but see below).

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Goniopholis

Goniopholis is an extinct genus of goniopholidid crocodyliform that lived in Europe and Africa during the Late Jurassic and Early Cretaceous.

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Gonorynchiformes

The Gonorynchiformes are an order of ray-finned fish that includes the important food source, the milkfish (Chanos chanos, family Chanidae), and a number of lesser-known types, both marine and freshwater.

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Gorman Creek Formation

The Gorman Creek Formation is a geologic formation of Early Cretaceous (Valanginian) age in the Western Canada Sedimentary Basin that consists primarily of nonmarine sediments.

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Graciliraptor

Graciliraptor (meaning "graceful thief") is a genus of theropod dinosaur from the early Cretaceous Period.

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Gracilornis

Gracilornis is an extinct genus of early bird from the lower Cretaceous (Aptian stage).

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Grallator

Grallator is an ichnogenus (form taxon based on footprints) which covers a common type of small, three-toed print made by a variety of bipedal theropod dinosaurs.

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Grand Fond Group

The Brèches du Grand Fond Group is a group of stratigraphic formations in France that were deposited between the Middle Jurassic and the Early Cretaceous.

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Grand Veymont

The Grand Veymont (Le Grand Veymont), a mountain in the district of Gresse-en-Vercors, part of the department of Isère, France, is the highest point (2341 metres) of the Massif du Vercors, but not the highest of the Vercors Regional Natural Park (which is the Rocher Rond at 2453m).

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Graphical timeline of plesiosaurs

No description.

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Graphical timeline of pterosaurs

No description.

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Grès et sables piquetés

The Grès et sables piquetés (French for: "spotted sandstone and sand") is a geological formation in Haute Marne, France whose strata date back to the Early Cretaceous.

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Great Coxwell

Great Coxwell is a village and civil parish about southwest of Faringdon in the Vale of White Horse, England.

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Grebe

A grebe is a member of the order Podicipediformes and the only type of bird associated with this order.

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Greenland Plate

The Greenland Plate is a supposed tectonic plate bounded to the west by Nares Strait, a probable transform fault, on the southwest by the Ungava transform underlying Davis Strait, on the southeast by the Mid-Atlantic Ridge, and the northeast by the Gakkel Ridge, with its northwest border is still being explored.

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Greensand

Greensand or green sand is a sand or sandstone which has a greenish color.

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Greensand Ridge

The Greensand Ridge is an extensive, prominent, often wooded, mixed greensand/sandstone escarpment in south-east England.

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Gres superieurs Formation

The Grès supérieurs Formation is a geological formation in Laos whose strata date back to the Early Cretaceous.

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Griman Creek Formation

The Griman Creek Formation is a geological formation in New South Wales, Australia whose strata date back to the Early Cretaceous.

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Grimston Warren Pit

Grimston Warren Pit is a geological Site of Special Scientific Interest east of King's Lynn in Norfolk.

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Guadalupe Group

The Guadalupe Group (Grupo Guadalupe, K2G, Ksg) is a geological group of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes.

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Guaratiba Group

The Guaratiba Group (Grupo Guaratiba) is a geological group of the Santos Basin offshore of the Brazilian states of Rio de Janeiro, São Paulo, Paraná and Santa Catarina.

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Guarujá Formation

The Guarujá Formation (Formacão Guarujá) is a geological formation of the Santos Basin offshore of the Brazilian states of Rio de Janeiro, São Paulo, Paraná and Santa Catarina.

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Guegoolithus

Guegoolithus is an oogenus of fossil egg from the Barremian of Spain.

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Guidraco

Guidraco (Chin. gui (鬼) "malicious ghost" + Lat. draco "dragon") is an extinct genus of toothed pterodactyloid pterosaur known from the Early Cretaceous of Liaoning Province, northeast China.

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Gurilynia

Gurilynia is a genus of enantiornithine birds.

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Gyraulus

Gyraulus is a genus of small, mostly air-breathing, freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails.

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Hadongsuchus

Hadongsuchus is an extinct genus of "protosuchian" crocodylomorph from the Hasandong Formation of Hadong, South Korea.

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Hadrosaurichnoides

Hadrosaurichnoides is a controversial Early Cretaceous ichnogenus of dinosaur footprint erected by Casanovas-Cladellas.

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Hadrosauroidea

Hadrosauroidea is a clade or superfamily of ornithischian dinosaurs that includes the "duck-billed" dinosaurs, or hadrosaurids, and all dinosaurs more closely related to them than to Iguanodon.

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Haestasaurus

Haestasaurus is a genus of herbivorous sauropod dinosaur, belonging to the Macronaria, that during the Early Cretaceous lived in the area of present-day England.

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Halibut Oil Field

The Halibut Field, is an oil field, within the Gippsland Basin.

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Haman Formation

The Haman Formation is an Early Cretaceous epoch geological formation in South Korea.

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Hamipterus

Hamipterus is an extinct genus of pteranodontoid pterosaur from the Early Cretaceous of northwestern China.

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Hamites (genus)

Hamites ("hook-like") is a genus of heteromorph ammonite that evolved late in the Aptian stage of the Early Cretaceous and lasted into the Cenomanian stage of the Late Cretaceous.

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Hammett Shale

The Hammett Shale is a geologic formation in Texas.

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Haopterus

Haopterus is a ornithocheiroid pterodactyloid pterosaur genus from the Barremian-Aptian-age Lower Cretaceous Yixian Formation of Liaoning, China.

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Harpymimus

Harpymimus is a basal ornithomimosaurian theropod dinosaur from the Early Cretaceous Period of what is now Mongolia.

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Harrl

The Harrl is a high, wooded western outlier of the Bückeberg hill ridge in the Weser Uplands of central Germany.

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Harz

The Harz is a Mittelgebirge that has the highest elevations in Northern Germany and its rugged terrain extends across parts of Lower Saxony, Saxony-Anhalt, and Thuringia.

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Hastanectes

Hastanectes is an extinct genus of a plesiosaurian with possible pliosaurid affinities known from the Early Cretaceous Wadhurst Clay Formation (Valanginian stage) of the United Kingdom.

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Hastings Beds

The Hastings Beds is a geological unit that includes interbedded clays, silts, siltstones, sands and sandstones in the High Weald of southeast England.

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Hauterivian

The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous epoch or a stage in the Lower Cretaceous series.

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Hühteeg Svita

The Hühteeg Svita (Хөхтээг формаци, Khökhteeg Formatsi) is a geological formation in Mongolia whose strata date back to the Early Cretaceous.

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Heacham Brick Pit

Heacham Brick Pit is a geological Site of Special Scientific Interest in Heacham, north of King's Lynn in Norfolk.

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Heishanobaatar

Heishanobaatar is an extinct genus of eobaatarid multituberculate which existed in Shahai and Fuxin formations, northeastern China, during the early Cretaceous (Aptian/Albian age).

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Heishanoolithus

Heishanoolithus is an oogenus of Elongatoolithid fossil egg from the Shahai Formation in Liaoning.

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Hekou Group

The Hekou Group is a geological formation from which fossil pterosaur tracks have been recovered.

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Helgolandichthys

Helgolandichthys is an extinct genus of prehistoric bony fish that lived during the Aptian stage of the Early Cretaceous epoch.

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Hemicidaris

Hemicidaris is an extinct genus of echinoids that lived from the Middle Jurassic to the Early Cretaceous.

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Heminautilus

Heminautilus is an extinct genus of nautiloids from the nautilacean family Cenoceratidae that lived during the Early Cretaceous.

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Henri Coquand

Henri Coquand (1813, in Aix-en-Provence – 1881, in Marseille) was a French geologist and paleontologist.

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Hensel Formation

The Hensel Formation or Hensel Sand is a Mesozoic geologic formation in Texas.

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Hermit crab

Hermit crabs are decapod crustaceans of the superfamily Paguroidea.

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Hesperonychus

Hesperonychus (meaning "western claw") was a genus of small, carnivorous dromaeosaurid dinosaur.

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Hesperornithes

Hesperornithes is an extinct and highly specialized group of aquatic avialans closely related to the ancestors of modern birds.

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Heterodontosauridae

Heterodontosauridae is a family of early ornithischian dinosaurs that were likely among the most basal (primitive) members of the group.

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Heterodontosaurus

Heterodontosaurus is a genus of heterodontosaurid dinosaur that lived during the Early Jurassic, 200–190 million years ago.

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Heterosuchus

Heterosuchus is an extinct genus of crocodylomorph that may have been an eusuchian.

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Hexing

Hexing is an extinct genus of basal ornithomimosaur dinosaur known from the Early Cretaceous of northeastern China.

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Hezar Masjed Mountains

Hezar Masjed Mountains are a group of mountains that form the southeastern section of the Kopet-Dag Range.

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Hibolithes

Hibolithes is a genus of belemnite that lived from the Middle Jurassic to the Early Cretaceous, and has been found in Antarctica, Europe, South America, and New Zealand.

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High pressure metamorphic terranes along the Bangong-Nujiang Suture Zone

High pressure terranes along the ~1200 km long east-west trending Bangong-Nujiang suture zone (BNS) on the Tibetan Plateau have been extensively mapped and studied.

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Higher Common Ground

Higher Common Ground is a cricket ground on Tunbridge Wells Common in the town of Royal Tunbridge Wells in Kent.

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Hippodraco

Hippodraco ("horse" (hippos in Greek) and "dragon" (draco in Latin)) is a genus of herbivorous iguanodontian dinosaur.

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Hispaniola

Hispaniola (Spanish: La Española; Latin and French: Hispaniola; Haitian Creole: Ispayola; Taíno: Haiti) is an island in the Caribbean island group, the Greater Antilles.

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Historical geology

Historical geology or paleogeology is a discipline that uses the principles and techniques of geology to reconstruct and understand the geological history of Earth.

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History of Folkestone

The history of Folkestone stretches back to prehistoric times, with evidence of human habitation dating to the Mesolithic and Paleolithic ages over 12,000 years ago.

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History of paleontology in the United States

The history of paleontology in the United States refers to the developments and discoveries regarding fossils found within or by people from the United States of America.

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History of Wallonia

The history of Wallonia, from prehistoric times to the present day, is that of a territory which, since 1970, has approximately coincided with the territory of Wallonia, a federated component of Belgium, which also includes the smaller German-speaking Community of Belgium (73,000 inhabitants).

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Histriasaurus

Histriasaurus (HIS-tree-ah-SAWR-us) (meaning "Istria lizard") was a genus of dinosaur from the Early Cretaceous (Hauterivian to Barremian stages, around 130 million years ago).

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Hoburogekko

Hoburogekko is an extinct genus of gecko that includes a single species, Hoburogekko suchanovi, from the Early Cretaceous of Mongolia.

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Hodotermitidae

The harvester termites (from Greek ὁδός (hodós), travelling; Latin termes, woodworm) are an ancient, Old World family of termites, Hodotermitidae.

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Homoeosaurus

Homeosaurus is an extinct genus of sphenodont reptile.

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Hongshanopterus

Hongshanopterus is a genus of istiodactylid ornithocheiroid pterodactyloid pterosaur from the Lower Cretaceous Jiufotang Formation of Liaoning, China.

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Hongshanornis

Hongshanornis is a genus of ornithuromorph birds known from early Cretaceous lake deposits of the Yixian Formation, Inner Mongolia, China.

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Hongshanornithidae

Hongshanornithidae is an extinct group of early ornithuromorph birds from the early Cretaceous period of China.

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Hoplitosaurus

Hoplitosaurus (meaning "Hoplite lizard") was a genus of armored dinosaur related to Polacanthus.

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Horshamosaurus

Horshamosaurus is a genus of herbivorous ankylosaurian dinosaur from the Early Cretaceous of England.

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Houornis

Houornis is a genus of enantiornithean birds from the Jiufotang Formation of Liaoning, People's Republic of China.

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Hoyalacerta

Hoyalacerta is an extinct genus of lizard known from the type species Hoyalacerta sanzi, which is from the Early Cretaceous Las Hoyas fossil site in Spain.

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Hoyasemys

Hoyasemys (meaning "turtle of Las Hoyas") is an extinct genus of basal eucryptodiran freshwater turtle from Lower Cretaceous (upper Barremian stage) deposits of Cuenca Province, Spain.

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Hsanda Gol Formation

The Hsanda Gol Formation is a geological formation dating from the Oligocene, located in Central Mongolia in the Tsagan Nor basin.

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Huanghetitan

Huanghetitan (meaning "Yellow River titan"), is a genus of sauropod dinosaur from the early Cretaceous Period.

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Huaxiagnathus

Huaxiagnathus is a genus of theropod dinosaur from the Lower Cretaceous of China.

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Huaxiapterus

Huaxiapterus (meaning "Hua Xia wing") is a genus of tapejarid pterodactyloid pterosaur from the Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China.

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Huehuecuetzpalli

Huehuecuetzpalli mixtecus is an extinct lizard from the Early Cretaceous (specifically the middle to late Aptian stage) Tlayúa Formation in Tepexi de Rodríguez, Central Mexico.

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Hulcross Formation

The Hulcross Formation is a geologic formation in the Western Canada Sedimentary Basin in northeastern British Columbia that was deposited in marine environments during the late Albian stage of the Early Cretaceous period.

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Hulkepholis

Hulkepholis is an extinct genus of goniopholidid mesoeucrocodylian from the Early Cretaceous of southern England and eastern Spain.

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Humbug Mountain

Humbug Mountain lies on the southern coast of the U.S. state of Oregon.

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Hunstanton

Hunstanton is a seaside town in Norfolk, England.

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Huoshanornis

Huoshanornis is a genus of enantiornithine birds which existed in what is now Jiufotang Formation of Western Liaoning Province, China during the early Cretaceous period.

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Huxleysaurus

Huxleysaurus (meaning "Huxley's lizard") is a genus of herbivorous styracosternan ornithopod dinosaur.

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Hylaeobatrachus

Hylaeobatrachus is an extinct genus of prehistoric salamander.

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Hylaeochampsa

Hylaeochampsa is an extinct genus of eusuchian crocodylomorph.

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Hylaeochampsidae

Hylaeochampsidae is an extinct family of basal eusuchian crocodylomorphs thought to be closely related to the order Crocodylia.

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Hylaeosaurus

Hylaeosaurus (Greek: hylaios/ὑλαῖος "belonging to the forest" and sauros/σαυρος "lizard") is a herbivorous ankylosaurian dinosaur that lived about 136 million years ago, in the late Valanginian stage of the early Cretaceous period of England.

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Hyphalosaurus

Hyphalosaurus (meaning "submerged lizard") is a genus of freshwater aquatic reptiles which represent a major part of the Jehol Biota.

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Hypselospinus

Hypselospinus is a genus of iguanodontian dinosaur which was first described as a species of Iguanodon (I. fittoni) by Richard Lydekker in 1889, the specific name honouring William Henry Fitton.

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Hypsilophodon

Hypsilophodon (meaning "Hypsilophus-tooth") is an ornithischian dinosaur genus from the Early Cretaceous period of England.

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Hypsilophodont

Hypsilophodontidae is a potentially invalid family of ornithopod dinosaurs.

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Iberica (mammal)

Iberica is an extinct genus of eobaatarid or a possible plagiaulacid multituberculate which existed in what is now Galve, Spain, during the early Cretaceous (late Hauterivian-early Barremian age).

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Iberodon

Iberodon is a small, extinct mammal of the Lower Cretaceous from Portugal.

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Iberomesornis

Iberomesornis ("Spanish intermediate bird") is a monotypic genus of enantiornithine bird of the Cretaceous of Spain.

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Iberomesornithidae

Iberomesornithidae is an extinct family of enantiornithine birds.

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Ichthyoconodon

Ichthyoconodon is an extinct genus of eutriconodont mammal from the Lower Cretaceous of Morocco.

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Ichthyosaur

Ichthyosaurs (Greek for "fish lizard" – ιχθυς or ichthys meaning "fish" and σαυρος or sauros meaning "lizard") are large marine reptiles.

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Ichthyosauridae

Ichthyosauridae is an extinct family of thunnosaur ichthyosaurs from the latest Triassic and Early Jurassic (Rhaetian to Pliensbachian stages) of Europe, and possibly also from the middle Early Cretaceous (Hauterivian or Barremian stage) of Iraq.

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Ichthyovenator

Ichthyovenator is a spinosaurid theropod dinosaur from the Early Cretaceous of Laos, likely from the Aptian age (113–125 million years ago).

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Iguanacolossus

Iguanacolossus (meaning 'iguana colossus' from the genus name Iguana and the Latin word "colossus") is a genus of herbivorous iguanodontian dinosaur.

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Iguanidae

The Iguanidae are a family of lizards composed of iguanas and related species.

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Iguanodon

Iguanodon (meaning "iguana-tooth") is a genus of ornithopod dinosaur that existed roughly halfway between the first of the swift bipedal hypsilophodontids of the mid-Jurassic and the duck-billed dinosaurs of the late Cretaceous.

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Iguanodontidae

Iguanodontidae is a family of iguanodontians belonging to Styracosterna, a derived clade within Ankylopollexia.

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Ikrandraco

Ikrandraco ("Ikran dragon") is a genus of pteranodontoid pterosaur known from Lower Cretaceous rocks in northeastern China.

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Ilek Formation

The Ilek Formation is a Lower Cretaceous geologic formation in Western Siberia.

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Ilerdopteryx

Ilerdopteryx is an extinct genus of birds, perhaps an enantiornithine, from the Lower Cretaceous La Pedrera de Rubies lithographic limestone of Spain.

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Incisivosaurus

Incisivosaurus ("incisor lizard") is a genus of small, probably herbivorous theropod dinosaur from the early Cretaceous Period of what is now the People's Republic of China.

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Inkayacu

Inkayacu is a genus of extinct penguins.

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Irenosaurus

Irenosaurus is a genus of choristodere, a type of amphibious reptile.

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Irritator

Irritator is a genus of spinosaurid theropod dinosaur that lived during the Early Cretaceous Period (Albian stage), around 110 million years ago, of what is now Brazil.

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Ischyrosaurus

"Ischyrosaurus" (meaning "strong lizard", for its large humerus; name in quotation marks because it is preoccupied) was a genus of sauropod dinosaur from the Kimmeridgian-age Upper Jurassic Kimmeridge Clay of Dorset, England.

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Isisfordia

Isisfordia (named after the discoverer; former Deputy Mayor of Isisford, Ian Duncan) (holotype QM F36211) is an extinct genus of crocodyliform closely related to crocodilians that lived during the Middle Cretaceous (Albian–Cenomanian).

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Istiodactylidae

Istiodactylidae is a small family of pterosaurs.

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Istiodactylus

Istiodactylus is a genus of pterosaur that lived during the Early Cretaceous period, about 120 million years ago.

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Itanhaém Formation

The Itanhaém Formation (Formacão Itanhaém) is a geological formation of the Santos Basin offshore of the Brazilian states of Rio de Janeiro, São Paulo, Paraná and Santa Catarina.

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Itapecuru Formation

The Itapecuru Formation is a geological formation in Itapecuru Mirim, Maranhão, Brazil.

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Iuticosaurus

Iuticosaurus (meaning "Jute lizard") is the name given to a genus of dinosaur from the Early Cretaceous of the Isle of Wight.

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Jack Souther

Jack Gordon Souther (April 25, 1924 – June 1, 2014) was an American-born Canadian geologist, volcanologist, professor and engineer.

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Jehol Biota

The Jehol Biota includes all the living organisms – the ecosystem – of northeastern China between 133 and 120 million years ago.

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Jeholodens

Jeholodens was a primitive mammal belonging to the order Eutriconodonta, and which lived in present-day China during the Middle Cretaceous about 125 million years ago.

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Jeholodentidae

The family Jeholodentidae is a possible eutriconodont family that was present in China around 125 million years ago during the time of the dinosaurs.

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Jeholornis

Jeholornis (meaning "Jehol bird") is a genus of avialans that lived between approximately 122 and 120 million years ago during the early Cretaceous Period in China.

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Jeholosauridae

Jeholosaurids were herbivorous neornithischian dinosaurs from the Cretaceous Period (Aptian - Santonian, with a possible Campanian record) of Asia.

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Jeholosaurus

Jeholosaurus is a genus of ornithischian dinosaur from the Early Cretaceous Period.

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Jianchangornis

Jianchangornis a genus of basal ornithuromorph birds.

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Jianchangosaurus

Jianchangosaurus is a genus of therizinosaurian dinosaur that lived approximately 126 million years ago during the early part of the Cretaceous Period from the Yixian Formation in what is now China.

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Jiangshanosaurus

Jiangshanosaurus was a titanosaurian sauropod that lived approximately 105 million years ago, during the Albian stage of the Early Cretaceous.

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Jianianhualong

Jianianhualong (meaning "Jianianhua dragon") is a genus of troodontid theropod dinosaur from the Early Cretaceous of China.

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Jianxing Formation

The Jianxing Formation is located in Suiling County, Heilongjiang Province and is composed of basal conglomerate, gravel-bearing coarse-grained sandstone, with interbeds of siltstone, mudstone and coal seams.

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Jibeinia

Jibeinia is a genus of enantiornithean bird.

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Jidapterus

Jidapterus is a genus of azhdarchoid pterodactyloid pterosaur from the Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China.

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Jinfengopteryx

Jinfengopteryx (from Jinfeng, 'golden phoenix', the queen of birds in Chinese folklore, and Ancient Greek πτερυξ pteryx, meaning 'feather') is a genus of maniraptoran dinosaur.

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Jingshanosaurus

Jingshanosaurus (meaning "Jingshan lizard") is a genus of sauropodomorph dinosaurs from the early Jurassic period.

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Jinhua Formation

The Jinhua Formation is a geological formation in Zhejiang, China, whose strata date back to the Early Cretaceous period.

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Jintasaurus

Jintasaurus is a genus of hadrosauriform dinosaur described by Hai-Lu You (尤海鲁, Yóu Hǎilǔ) and Da-Qing Li (李大庆, Lǐ Dàqìng) in 2009.

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Jinzhou

Jinzhou is a prefecture-level city of Liaoning province, People's Republic of China.

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Jinzhousaurus

Jinzhousaurus is a genus of hadrosauroid dinosaur of the Early Cretaceous of China.

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Jiufotang Formation

The Jiufotang Formation (Chinese: 九佛堂组, pinyin: jiǔfótáng zǔ) is an Early Cretaceous geological formation in Chaoyang, Liaoning which has yielded fossils of feathered dinosaurs, primitive birds, pterosaurs, and other organisms (see Jehol Biota).

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Jiuquanornis

Jiuquanornis is an extinct genus of basal ornithuromorph dinosaur known from the Early Cretaceous Xiagou Formation of Changma Basin, Gansu Province of northwestern China.

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Jixiangornis

Jixiangornis is a genus of primitive euavialans from the Early Cretaceous.

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John Hulke

John Whitaker Hulke FRCS FRS FGS (6 November 1830 – 19 February 1895) was a British surgeon, geologist and fossil collector.

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Jucaraseps

Jucaraseps is an extinct genus of small squamate lizard known from the Early Cretaceous of Las Hoyas, Spain.

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Juchilestes

Juchilestes is an amphidontid mammal genus from the early Cretaceous (early Aptian stage, 123.2 ± 1.0 Ma).

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Juehuaornis

Juehuaornis is an extinct genus of ornithuromorph bird from the Early Cretaceous of present-day China.

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Jugulator (mammal)

Jugulator is a genus of extinct mammal from the Cretaceous of North America.

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Junornis

Junornis is a bird genus, belonging to the Enantiornithes, that during the Early Cretaceous lived in the area of present China.

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Jydegaard Formation

The Jydegaard Formation (also spelt as Jydegård) is a geological formation dating to the Early Cretaceous, about 145 to 140 million years ago.

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Kagasaurus

"Kagasaurus" (meaning "Kaga lizard") is the informal name given to an as yet undescribed genus of dinosaur from the Early Cretaceous.

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Kakuru

Kakuru is a genus of theropod dinosaur from the early Cretaceous Period.

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Kangnasaurus

Kangnasaurus (meaning "Farm Kangnas lizard") is a genus of iguanodontian ornithopod dinosaur found in supposedly Early Cretaceous rocks of South Africa.

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Karongasaurus

Karongasaurus is the name given to a genus of dinosaur from the Early Cretaceous.

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Königstein (Westerhausen)

The Königstein is a high hill in the northern Harz Foreland in the German state of Saxony-Anhalt.

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Kebira Crater

Kebira Crater (فوهة كبيرة) is the name given to a circular topographic feature that was identified in 2007 by Farouk El-Baz and Eman Ghoneim using satellite imagery, Radarsat-1, and Shuttle Radar Topography Mission (SRTM) data in the Sahara desert.

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Keilhauia

Keilhauia is a genus of ophthalmosaurid ichthyosaur, a type of dolphin-like, large-eyed marine reptile, from Early Cretaceous shallow marine deposits in Svalbard, Norway.

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Kellenspitze

The Kellenspitze, often also called the Kellespitze or Köllenspitze, at is the highest peak in the Tannheim Mountains.

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Kelmayisaurus

Kelmayisaurus is an extinct genus of carcharodontosaurid theropod dinosaur from the early Cretaceous.

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Kenneth Lacovara

Kenneth J. Lacovara is an American paleontologist and geologist at Rowan University and fellow of the Explorers Club, known for the discovery of the titanosaurian dinosaur Dreadnoughtus and his involvement in the discovery and naming of the giant sauropod dinosaur Paralititan, as well as his work applying 3D printing technology to paleontology.

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Kentrosaurus

Kentrosaurus is a genus of stegosaurian dinosaur from the Late Jurassic of Tanzania.

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Kezilesu Group

The Kezilesu Group is a geological formation in China whose strata date back to the Early Cretaceous.

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Khok Kruat Formation

The Khok Kruat Formation is a rock formation found in northeastern Thailand.

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Khooldzin Svita

The Khooldzin Svita is a geological formation in Mongolia whose strata date back to the Early Cretaceous.

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Khoratosuchus

Khoratosuchus is an extinct genus of neosuchian crocodylomorph which existed in northeast Thailand during the early Cretaceous period.

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Khurendukhosaurus

Khurendukhosaurus is a genus of choristodere, a type of amphibious reptile.

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Kielanobaatar

Kielanobaatar is an extinct genus of albionbaatarid multituberculate which existed in Shahai and Fuxin formations, northeastern China, during the early Cretaceous (Aptian/Albian age).

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Kieselkalk

Kieselkalk is also known as the Helvetic Siliceous Limestone.

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Kilianella

Kilianella is a genus of the ammonite family Neocomitidae.

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Kinnareemimus

Kinnareemimus is a genus of ornithomimosaurian theropod dinosaur from Thailand.

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Kirgizemys

Kirgizemys is an extinct genus of turtle from Early Cretaceous of China, Mongolia, Russia and Kyrgyzstan.

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Kirkwood Formation

The Kirkwood Formation is a geological formation found in the Eastern and Western Cape provinces in South Africa.

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Kitadani Formation

The Kitadani Formation is a unit of Lower Cretaceous sedimentary rock which crops out near the city of Katsuyama in the Fukui Prefecture of Japan, and it is the primary source of Cretaceous-aged non-marine vertebrate fossils in Japan.

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Kleiner Deister

The Kleiner Deister is a ridge of hills (up to) in the Calenberg Uplands which, together with the Nesselberg and the Osterwald, forms a group of three adjacent hill ranges in the northern part of the Leine Uplands.

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Kollikodon

Kollikodon ritchiei is a australosphenidan species, often classified as a monotreme but more recently recovered as an outgroup.

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Koolasuchus

Koolasuchus is an extinct genus of brachyopoid temnospondyl in the family Chigutisauridae.

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Kootenai Formation

The Kootenai Formation is a Lower Cretaceous geologic formation.

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Kootenay Group

The Kootenay Group, originally called the Kootenay Formation, is a geologic unit of latest Jurassic to earliest Cretaceous age in the Western Canada Sedimentary Basin that is present in the mountains and foothills of southeastern British Columbia and southwestern Alberta.

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Kopet Dag

The Kopet Dag, Kopet Dagh, or Koppeh Dagh (کپه‌داغ; Köpetdag), also known as the Turkmen-Khorasan Mountain Range is a mountain range on the frontier between Turkmenistan and Iran that extends about along the border southeast of the Caspian Sea, stretching northwest-southeast from near the Caspian Sea in the northwest to the Harirud River in the southeast.

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Koreaceratops

Koreaceratops is a genus of basal ceratopsian dinosaur discovered in Albian-age Lower Cretaceous rocks of South Korea.

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Koreanosaurus (theropod)

"Koreanosaurus" (meaning "Korean lizard") is the informal name given to an as-yet undescribed genus of dinosaur from the Early Cretaceous.

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Koshisaurus

Koshisaurus is a monospecific genus of basal hadrosauroid from the Kitadani Formation in Japan.

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Kossmaticeras

Kossmaticeras is an extinct ammonoid genus belonging to the desmoceratacean family Kossmaticeratidae.

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Koum Formation

The Koum Formation is a geological formation in the Northern Province of Cameroon, western Africa.

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Koumpiodontosuchus

Koumpiodontosuchus is an extinct genus of neosuchian crocodyliform that lived in the Early Cretaceous.

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Krill

Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans.

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Kronosaurus

Kronosaurus (meaning "lizard of Kronos") is an extinct genus of short-necked pliosaur.

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Krubera Cave

Krubera Cave (კრუბერის გამოქვაბული or კრუბერის ღრმული; Also known as Voronya Cave, sometimes spelled Voronja Cave) is the second deepest known cave on Earth after the Veryovkina Cave.

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Kryoryctes

Kryoryctes is a genus of prehistoric monotreme mammal from the Early Cretaceous (Albian) Eumeralla Formation of Victoria, Australia, from the Otway Group of Dinosaur Cove.

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Kryptops

Kryptops (meaning "covered face", in reference to evidence that the face bore a tightly-adhering covering) is a genus of theropod dinosaur from the Early Cretaceous of Niger.

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Kukufeldia

Kukufeldia is a genus of iguanodont dinosaur that existed in what is now England during the Early Cretaceous period.

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Kulceratops

Kulceratops is a genus of ceratopsian dinosaur from the Early Cretaceous.

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Kunbarrasaurus

Kunbarrasaurus is a genus of small herbivorous ankylosaurian dinosaur from the Cretaceous of Australia.

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Kuwajima Formation

The Kuwajima Formation is an Early Cretaceous geologic formation.

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Kuwajimalla

Kuwajimalla kagaensis is an extinct species of plant-eating lizard from the Early Cretaceous period in Japan.

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Kyasuchus

Kyasuchus is an extinct genus of shartegosuchid crocodylomorph.

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La Herradura Formation

La Herradura Formation (Formación La Herradura) is a sedimentary formation of Lower Cretaceous age exposed near Lima in Peru.

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La Predrera de Rubies Lithographic

The La Predrera de Rubies Lithographic is a geological formation in Spain whose strata date back to the Early Cretaceous.

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La Rioja (Spain)

La Rioja is an autonomous community and a province in Spain, located in the north of the Iberian Peninsula.

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Lacusovagus

Lacusovagus (meaning "lake wanderer") is a genus of azhdarchoid pterodactyloid pterosaur from the Lower Cretaceous of Brazil.

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Lagenanectes

Lagenanectes is a genus of elasmosaurid plesiosaur from the Lower Cretaceous, found in Lower Saxony, Germany.

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Lagenida

Lagenida is an order of benthic foraminiferal protists in which the tests (shells) are monolamellar, with walls composed of optically and ultra-structurally radiate calcite, with the crystallographic c-axes perpendicular to the surface.

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Lamiophanes schroeteri

Lamiophanes schroeteri or Lamia schroeteri is an extinct species of beetle in the family Cerambycidae.

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Lancian

The Lancian was a North American faunal stage of the Late Cretaceous.

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Lanzhousaurus

Lanzhousaurus is a genus of dinosaur.

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Laosaurus

Laosaurus (meaning "stone or fossil lizard") is a genus of neornithischian dinosaur.

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Lapa oil field

The Lapa oil field is a deepwater oil field in the pre-salt Guaratiba Group of the South Atlantic Santos Basin, off the coast of São Paulo, Brazil.

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Larachelus

Larachelus is an extinct genus of basal pan-cryptodiran turtle known from the Early Cretaceous (late Hauterivian to early Barremian stage) of Spain.

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Largirostrornis

Largirostrornis is a genus of enantiornithean bird.

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Laurasiformes

Laurasiformes (meaning "Laurasian forms") is an extinct clade of sauropod dinosaurs from the late Early Cretaceous of Europe, North and South America.

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Lavocatia

Lavocatia is a genus of extinct mammal from the Lower Cretaceous of Spain.

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Lazarussuchus

Lazarussuchus (meaning "Lazarus's crocodile") is a genus of basal choristodere, a type of amphibious reptile, known from France, Germany, and the Czech Republic.

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Leaellynasaura

Leaellynasaura (meaning "Leaellyn's lizard") is a genus of small herbivorous ornithischian dinosaurs from the Albian stage of the Early Cretaceous (dated to between 118 and 110 million years agoHoltz, Thomas R. Jr. (2012) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages), first discovered in Dinosaur Cove, Australia.

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Leduc No. 1

Leduc No.

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Leefructus

Leefructus is an extinct genus of eudicot plants which existed in Yixian Formation, China during the early Cretaceous period.

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Leighton Buzzard Light Railway

The Leighton Buzzard Light Railway (LBLR) is a light railway in Leighton Buzzard in Bedfordshire, England.

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Leinkupal

Leinkupal is a genus of diplodocine sauropod known from the Early Cretaceous (late Berriasian to Valanginian stage) of the Bajada Colorada Formation, southeastern Neuquén Province of Argentina.

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Leninia

Leninia is an extinct genus of basal ophthalmosaurine ichthyosaur known from the late Early Cretaceous (lower Aptian stage) of western Russia.

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Lepidotes

Lepidotes (previously known as Lepidotus) is an extinct genus of semionotid neopterygian ray-finned fish from the Jurassic period (Toarcian age) and Early Cretaceous.

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Leptocleididae

Leptocleididae is a family of small-sized plesiosaurs that lived during the Early Cretaceous period (early Berriasian to early Albian stage).

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Leptocleidus

Leptocleidus is an extinct genus of pliosaurid plesiosaur, belonging to the family Leptocleididae.

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Leptoconops amplificatus

Leptoconops amplificatus is an extinct species of biting midge belonging to the family Ceratopogonidae.

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Leptoconops antiquus

Leptoconops antiquus is an extinct species of biting midges belonging to the family Ceratopogonidae.

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Leptoconops burmiticus

Leptoconops burmiticus is an extinct species of biting midges belonging to the family Ceratopogonidae.

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Leptoconops myanmaricus

Leptoconops myanmaricus is an extinct species of biting midges belonging to the family Ceratopogonidae.

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Leptoconops nosopheris

Leptoconops nosopheris is an extinct species of biting midges belonging to the family Ceratopogonidae.

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Leptoconops rossi

Leptoconops rossi is an extinct species of biting midges belonging to the family Ceratopogonidae.

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Leptoconops zherikhini

Leptoconops zherikhini is an extinct species of biting midges belonging to the family Ceratopogonidae.

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Leptolepidae

Leptolepidae ("Delicate Scales") is an extinct family of herring-like Mesozoic teleosts found throughout the world.

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Leptolepis

Leptolepis ("delicate scale") is an extinct genus of teleost fish that lived in freshwater and marine environments from the Middle Triassic period until the Early Cretaceous.

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Lesser Himalayan Strata

One of the major depositional strata in the Himalaya is the Lesser Himalayan Strata from the Paleozoic to Mesozoic eras.

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Leyvachelys

Leyvachelys is an extinct genus of turtles in the family Sandownidae from the Early Cretaceous (Late Barremian to Early Aptian) of the present-day Altiplano Cundiboyacense, Eastern Ranges, Colombian Andes.

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Lhasa terrane

The Lhasa terrane is a terrane, or fragment of crustal material, sutured to the Eurasian Plate during the Cretaceous that forms present-day southern Tibet.

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Liangtoutang Formation

The Liangtoutang Formation is a geological formation located in Zhejiang, China whose strata date back to the Early Cretaceous period.

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Lianmuqin Formation

The Lianmuqin Formation is an Early Cretaceous geologic formation composed of "interbedded red green and yellow variegated mudstones and siltstones sic".

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Liaobatrachus

Liaobatrachus (meaning "Liaoning frog") is a genus of prehistoric spadefoot toad, the fossil specimen of which was recovered from the Yixian Formation of Liaoning Province, China.

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Liaoceratops

Liaoceratops, meaning "Liao Horned Face", is a ceratopsian dinosaur believed to be an early relative of the horned ceratopsids.

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Liaochelys

Liaochelys is an extinct genus of macrobaenid turtle which existed in western Liaoning, China during the early Cretaceous epoch.

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Liaoning

Liaoning is a province of China, located in the northeast of the country.

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Liaoningopterus

Liaoningopterus, sometimes misspelled "Liaoningopteryx", was a genus of ornithocheirid pterodactyloid pterosaur from the Barremian-Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China.

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Liaoningornis

Liaoningornis (meaning "bird of Liaoning" in Greek) is a genus of bird from Lower Cretaceous China.

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Liaoningosaurus

Liaoningosaurus is an unusual genus of ankylosaurian dinosaurs from the early Cretaceous period of China.

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Liaoningvenator

Liaoningvenator (meaning "Liaoning hunter") is a genus of troodontid theropod dinosaur from the Early Cretaceous of China.

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Liaoxiornis

Liaoxiornis is a dubious genus of enantiornithine bird.

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Liaoxipterus

Liaoxipterus is a genus of pterodactyloid pterosaur from the Barremian-Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China.

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Liaoxisaurus

Liaoxisaurus is a genus of simodeosaurid choristodere, a type of crocodile-like aquatic reptile.

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Liaoxitriton

Liaoxitriton is an extinct genus of prehistoric salamanders from the Mesozoic of China.

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Lias Group

The Lias Group or Lias is a lithostratigraphic unit (a sequence of rock strata) found in a large area of western Europe, including the British Isles, the North Sea, the Low Countries and the north of Germany.

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Ligabueino

Ligabueino (meaning "Ligabue's little one") is a genus of abelisauroid dinosaur named after its discoverer, Italian doctor Giancarlo Ligabue.

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Ligabuesaurus

Ligabuesaurus is a genus of dinosaur from the Early Cretaceous (Aptian to Albian stage, 100 to 125 million years ago).

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Liliales

Liliales (older name: Lilia) is an order of monocotyledonous flowering plants in the Angiosperm Phylogeny Group and Angiosperm Phylogeny Web system, within the lilioid monocots.

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Limaysaurus

Limaysaurus is a herbivorous rebbachisaurid sauropod dinosaur from the Lower Cretaceous of northwestern Patagonia.

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Limnarchia

Limnarchia is a clade of temnospondyls.

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Linlongopterus

Linlongopterus is a genus of pteranodontoid pterodactyloid pterosaur from the Early Cretaceous of China.

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Linuparus

Linuparus is a genus of spiny lobsters in the family Palinuridae.

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Lisboasaurus

Lisboasaurus is a small (400 mm length) genus of Mesozoic crocodylomorph that lived in fresh water.

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List of African dinosaurs

This is a list of dinosaurs whose remains have been recovered from Africa.

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List of ammonite genera

This list of ammonites is a comprehensive listing of genera that are included in the subclass †Ammonoidea, excluding purely vernacular terms.

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List of creatures in Primeval

The following is a complete list of creatures from the universe of ITV science fiction television series Primeval and also any spin-off media, including Primeval: New World ("PNW").

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List of flood basalt provinces

Representative continental flood basalts (also known as traps) and oceanic plateaus, together forming a listing of large igneous provinces.

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List of fossil sites

This list of fossil sites is a worldwide list of localities known well for the presence of fossils.

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List of fossiliferous stratigraphic units in Alberta

This is a list of fossiliferous stratigraphic units in Alberta, Canada.

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List of fossiliferous stratigraphic units in British Columbia

This is a list of fossiliferous stratigraphic units in British Columbia, Canada.

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List of Global Boundary Stratotype Sections and Points

This is a list of Global Boundary Stratotype Sections and Points.

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List of ichthyosaur genera

This list of ichthyosaurs is a comprehensive listing of all genera that have ever been included in the order Ichthyosauria or the parent clade Ichthyopterygia, excluding purely vernacular terms.

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List of North American dinosaurs

This is a list of dinosaurs whose remains have been recovered from North America.

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List of oil and gas fields of the North Sea

This list of oil and gas fields of the North Sea contains links to oil and natural gas reservoirs beneath the North Sea.

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List of places of worship in Waverley (borough)

As of, there are more than 110 current and former places of worship in the borough of Waverley in Surrey, England.

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List of plesiosaur genera

This list of plesiosaurs is a comprehensive listing of all genera that have ever been included in the order Plesiosauria, excluding purely vernacular terms.

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List of prehistoric octocoral genera

This list of prehistoric octocorals is an attempt to create a comprehensive listing of all genera that have ever been included in the octocorallia, excluding purely vernacular terms.

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List of prehistoric starfish genera

This list of prehistoric starfish is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be in the class Asteroidea, excluding purely vernacular terms.

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List of pterosaur genera

This list of pterosaurs is a comprehensive listing of all genera that have ever been included in the order Pterosauria, excluding purely vernacular terms.

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List of pterosaur-bearing stratigraphic units

This is a list of stratigraphic units, where pterosaur fossils have been recovered from.

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List of sarcopterygian genera

This list of lobe-finned fish is a comprehensive listing of all genera that have ever been included in the class Sarcopterygii, excluding purely vernacular terms and Tetrapods.

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List of Sites of Special Scientific Interest in Bedfordshire

Bedfordshire is a county in the East of England.

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List of Sites of Special Scientific Interest in Buckinghamshire

Buckinghamshire is a county in south-east England.

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List of Sites of Special Scientific Interest in Kent

Kent is a county in the south-eastern corner of England.

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List of Sites of Special Scientific Interest in Norfolk

The following is a list of Sites of Special Scientific Interest (SSSIs) in Norfolk, England.

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List of Sites of Special Scientific Interest on the Isle of Wight

This is a list of the Sites of Special Scientific Interest (SSSIs) on the Isle of Wight, England.

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List of stratigraphic units with dinosaur trace fossils

This is a list of stratigraphic units dinosaur trace fossils have been recovered from.

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List of stratigraphic units with few dinosaur genera

This list of stratigraphic units with few non-avian dinosaur genera includes Mesozoic stratigraphic units of formation rank or higher that have produced dinosaur body fossils which have been referred to at most five genera.

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List of stratigraphic units with ornithischian tracks

No description.

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List of thalattosuchian-bearing stratigraphic units

List of thalattosuchian-bearing stratigraphic units, or geologic formations.

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Lithographic limestone

Lithographic limestone is hard limestone that is sufficiently fine-grained, homogeneous and defect free to be used for lithography.

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Lithostrotia

Lithostrotia is a clade of derived titanosaur sauropods that lived during the Early Cretaceous and Late Cretaceous.

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Liubangosaurus

Liubangosaurus is a genus of sauropod dinosaur which lived during the Early Cretaceous in what is now southern China.

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Liushusaurus

Liushusaurus is an extinct genus of lizard described by Susan E. Evans and Yuan Wang in 2010.

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Lonchodectidae

Lonchodectidae is a group of pterosaurs within the clade Pterodactyloidea.

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Lonchodraco

Lonchodraco is a genus of pterodactyloid pterosaur from the Cretaceous of England.

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Lonchognathosaurus

Lonchognathosaurus was a genus of dsungaripterid pterodactyloid pterosaur from the Albian-age Lower Cretaceous Lianmuqin Formation of Xinjiang, China.

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London Basin

The London Basin is an elongated, roughly triangular sedimentary basin approximately long which underlies London and a large area of south east England, south eastern East Anglia and the adjacent North Sea.

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Longchengornis

Longchengornis is a genus of enantiornithean birds which lived during the early Cretaceous Period, about 120 mya, and is known from a fossil found in the Jiufotang Formation in Liaoning province, People's Republic of China.

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Longchengpterus

Longchengpterus was a genus of istiodactylid pterodactyloid pterosaur from the Barremian-Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China.

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Longicrusavis

Longicrusavis (meaning "long shin bird" in Latin) is an extinct genus of basal ornithuromorph bird within the family Hongshanornithidae.

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Longipterygidae

Longipterygidae is a family of early enantiornithean birds from the early Cretaceous Period of China.

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Longipteryx

Longipteryx is a genus of prehistoric bird which lived during the Early Cretaceous (Aptian stage, 120.3 million years ago).

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Longirostravis

Longirostravis is a genus of enantiornithean birds which existed during the early Cretaceous period (around 125 million years ago) and is known from fossils found in the middle or upper Yixian Formation in Yixian County, People's Republic of China.

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Longusunguis

Longusunguis is an extinct genus of bohaiornithid enantiornithean dinosaur known from the Early Cretaceous of Liaoning Province, northeastern China.

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Loon

The loons (North America) or divers (Great Britain/Ireland) are a group of aquatic birds found in many parts of North America and northern Eurasia.

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Losillasaurus

Losillasaurus (meaning "Losilla lizard") is a genus of sauropod dinosaur from the Jurassic-Cretaceous boundary in the southeast of Spain.

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Lower Greensand Group

The Lower Greensand Group is a geological unit, which forms part of the underlying geological structure of southeast England.

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Lower Khodzhaosmansk Formation

The Lower Khodzhaosmansk Formation is a geological formation in Kyrgysztan whose strata date back to the Early Cretaceous.

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Loxaulax

Loxaulax is a genus of extinct mammal from the Lower Cretaceous of southern England.

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Ludodactylus

Ludodactylus was a genus of pterodactyloid pterosaurs from the Aptian-age Lower Cretaceous Crato Formation of Ceará, Brazil.

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Ludogorie

The Ludogorie (Лудогорие, usually used with a definite article, Лудогорието, Ludogorieto) or Deliorman (Делиорман, Deliorman), all meaning "region of mad forests" (Bulgarian: lud - "mad", "crazy" and gora - "forest"), is a region in northeastern Bulgaria stretching over the plateau of the same name.

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Luohandong Formation

The Luohandong Formation is a Mesozoic geologic formation in China.

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Luoyanggia

Luoyanggia is a genus of oviraptorid dinosaur known from the Early Cretaceous Haoling Formation of the Ruyang Basin in Henan Province, central China.

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Lura Formation

The Lura Formation is a geological formation in western China whose strata date back to the Early Cretaceous.

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Lurdusaurus

Lurdusaurus ('heavy lizard') is a genus of large ornithopod dinosaur that lived in the Aptian stage of the Early Cretaceous, sometime between 121 and 112 million years ago.

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Luscar Group

The Luscar Group is a geologic unit of Early Cretaceous age in the Western Canada Sedimentary Basin that is present in the foothills of southwestern Alberta.

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Lusitanisuchus

Lusitanisuchus is an extinct genus of mesoeucrocodylian crocodylomorph.

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Lycoptera

Lycoptera is a genus of fish that lived from the late Jurassic to Cretaceous periods in present-day China, Korea, Mongolia and Siberia.

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Ma Butte Formation

The Ma Butte Formation is a stratigraphic unit of Early Cretaceous (Albian) age in the Western Canada Sedimentary Basin.

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Maaradactylus

Maaradactylus is a genus of anhanguerid pterosaur known from Lower Cretaceous rocks of northeastern Brazil.

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Machimosaurus

Machimosaurus is an extinct genus of teleosaurid crocodyliform from the Late Jurassic (Kimmeridgian and Tithonian) and Early Cretaceous.

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Mackunda Formation

The Mackunda Formation is a geological formation in Queensland, Australia whose strata date back to the Early Cretaceous.

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Macrepistius

Macrepistius is an extinct genus of prehistoric ray-finned fish that lived during the Albian stage of the Early Cretaceous epoch.

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Macroelongatoolithus

Macroelongatoolithus is an oogenus of large, fossil theropod eggs (probably representing a giant oviraptorid).

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Macropenaeus

Macropenaeus is an extinct genus of prawn in the order Decapoda, containing two species: the type species M. incertus, known from the Late Cretaceous (Cenomanian) of Lebanon, and M. sidiaichensis known from the Early Cretaceous (Barremian) of Tunisia.

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Macrosemiiformes

Macrosemiiformes is an extinct order of ray-finned fish with one family, Macrosemiidae.

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Macrurosaurus

Macrurosaurus (meaning "large-tailed lizard") is the name given to a genus of dinosaur from the Early Cretaceous.

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Magnamanus

Magnamanus is an extinct genus of herbivorous ornithischian dinosaur belonging to Iguanodontia, that lived during the Early Cretaceous in Spain.

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Magulodon

"Magulodon" is the name given to an as yet undescribed genus of dinosaur from the Early Cretaceous (Aptian to Albian stages, approximately 112 million years ago).

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Maiaspondylus

Maiaspondylus is an extinct genus of platypterygiine ophthalmosaurid ichthyosaur known from Northwest Territories of Canada.

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Majnoon oil field

Majnoon oil field is a super-giant oil field located from Basra, Basra Governorate in southern Iraq.

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Malawania

Malawania is an extinct genus of basal thunnosaur ichthyosaur known from the middle Early Cretaceous (Hauterivian or Barremian stage) of Iraq.

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Malawisaurus

Malawisaurus (meaning "Malawi lizard") was a genus of sauropod dinosaur (specifically a titanosaurian).

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Malawisuchus

Malawisuchus (meaning "Malawi crocodile") is an extinct genus of notosuchian mesoeucrocodylian from the Early Cretaceous of Malawi.

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Mammal

Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.

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Mammals of Australia

The mammals of Australia have a rich fossil history, as well as a variety of extant mammalian species, dominated by the marsupials, but also including monotremes and placentals.

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Mannville Group

The Mannville Group is a stratigraphical unit of Cretaceous age in the Western Canadian Sedimentary Basin.

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Mantellisaurus

Mantellisaurus is a genus of dinosaur formerly known as Iguanodon atherfieldensis that lived in the Barremian and early Aptian ages of the Early Cretaceous Period of Europe.

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Mantellodon

Mantellodon (meaning "Gideon Mantell's tooth") is a genus of styracosternan ornithopod.

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Maotherium

Maotherium is a genus extinct symmetrodont mammal that was discovered in Early Cretaceous rocks in Liaoning Province, China, in 2003.

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Maree Formation

The Maree Formation is a geological formation in South Australia whose strata date back to the Early Cretaceous.

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Marlim

Marlim is the name of a giant Brazilian oil field located in the north-eastern part of the Campos Basin, about 110 km offshore Rio de Janeiro, in water depths ranging from 650 to 1,050 m.

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Martharaptor

Martharaptor is an extinct genus of basal therizinosauroid theropod from the Lower Cretaceous of the Cedar Mountain Formation in Utah.

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Mayfly

Mayflies (also known as Canadian soldiers in the United States, and as shadflies or fishflies in Canada and the upper Midwestern U.S.; also up-winged flies in the United Kingdom) are aquatic insects belonging to the order Ephemeroptera.

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McMurray Formation

The McMurray Formation is a stratigraphic unit of Early Cretaceous age (late Barremian to Aptian stage) of the Western Canada Sedimentary Basin in northeastern Alberta.

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Mecoptera

Mecoptera (from the Greek: mecos.

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Megalosaurus dunkeri

"Megalosaurus" dunkeri is a dubious species of theropod dinosaur, known only from a single tooth.

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Megaraptora

Megaraptora is a group of carnivorous theropod dinosaurs with controversial relations to other theropods.

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Mei long

Mei (from Chinese 寐 mèi to sleep soundly) is a genus of duck-sized troodontid dinosaur first unearthed by paleontologists in Liaoning, China in 2004.

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Meiconodon

Meiconodon is an extinct genus of alticonodontine triconodontid which existed in China during the early Cretaceous period (Aptian/Albian age).

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Meiolaniidae

Meiolaniidae is an extinct family of large, possibly herbivorous turtles with heavily armored heads and tails known from South America and most of Oceania.

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Melchiorites

Melchiorites is a desmoceratid ammonite genus included in the subfamily Puzosiinae.

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Meng-Yin Formation

The Meng-Yin Formation is a geological formation in Shandong, China, whose strata date back to the Early Cretaceous.

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Menuthiocrioceras

Menuthiocrioceras is an ammonite genus from the Early Cretaceous belonging to the Ancyloceratoidea.

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Mesoclupea

Mesoclupea showchangensis is an extinct ichthyodectiform ray-finned fish that lived in freshwater environments in what is now China during the Early Cretaceous epoch.

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Mesomyzon

Mesomyzon mengae is an extinct lamprey from freshwater strata of the Early Cretaceous-aged Yixian Formation, in China.

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Mesozygiella

Mesozygiella is an extinct genus of orb-weaving spider (family Araneidae), with one known species, Mesozygiella dunlopi, dating from the Early Cretaceous, making it the earliest orb-weaver yet discovered.

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Metatheria

Metatheria is a mammalian clade that includes all mammals more closely related to marsupials than to placentals.

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Metriacanthosauridae

Metriacanthosauridae is an extinct family of theropod dinosaurs that lived from the Middle Jurassic to the Early Cretaceous.

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Metriorhynchidae

Metriorhynchidae is an extinct family of specialized, aquatic metriorhynchoid crocodyliforms from the Middle Jurassic to the Early Cretaceous period (Bajocian - Valanginian stages, potentially as late as early Aptian) of Europe, North America and South America.

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Metriorhynchinae

Metriorhynchinae is a subfamily of metriorhynchid crocodyliforms from the late Middle Jurassic to the Early Cretaceous (Callovian - Valanginian) of Europe, North America and South America.

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Metriorhynchoidea

Metriorhynchoidea is an extinct superfamily of thalattosuchian crocodyliforms from the Early Jurassic to the Early Cretaceous (Toarcian - Valanginian, possibly as late as early Aptian) of Europe, North America and South America.

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Microraptor

Microraptor (Greek, μικρός, mīkros: "small"; Latin, raptor: "one who seizes") was a genus of small, four-winged paravian dinosaurs.

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Microvenator

Microvenator (meaning "small hunter") is a genus of dinosaur from the Early Cretaceous Cloverly Formation in what is now south central Montana.

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Middle America (Americas)

Middle America is a region in the mid-latitudes of the Americas.

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Mierasaurus

Mierasaurus is an extinct genus of sauropod dinosaur from the Early Cretaceous of Utah, United States.

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Milkfish

The milkfish (Chanos chanos) is the sole living species in the family Chanidae.

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Minmi paravertebra

Minmi is a genus of small herbivorous ankylosaurian dinosaur that lived during the early Cretaceous Period of Australia, about 119 to 113 million years ago.

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Minnes Group

The Minnes Group, originally named the Minnes Formation, is a geologic unit of latest Jurassic to earliest Cretaceous age in the Western Canada Sedimentary Basin.

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Mirischia

Mirischia is a small (two meter-long) extinct genus of compsognathid theropod dinosaur from the Albian stage (Early Cretaceous period) of Brazil.

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Mist Mountain Formation

The Mist Mountain Formation is a latest Jurassic to earliest Cretaceous geologic formation in the Western Canada Sedimentary Basin of southeastern British Columbia and southwestern Alberta. It was named for outcrops along a western spur of Mist Mountain in the Canadian Rockies of Alberta. It contains economically important coal reserves that are mined in southeastern British Columbia.Gibson, D.W. 1979. The Morrissey and Mist Mountain formations - newly described lithostratigraphic units of the Jura-Cretaceous Kootenay Group, Alberta and British Columbia. Bulletin of Canadian Petroleum Geology 27: 183-208.

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Moa Plate

The Moa Plate was an ancient oceanic plate that formed in the Early Cretaceous south of the Pacific–Phoenix Ridge.

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Moabosaurus

Moabosaurus (meaning "Moab reptile") is a genus of turiasaurian sauropod dinosaur from the Early Cretaceous Cedar Mountain Formation of Utah, United States.

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Moganopterus

Moganopterus is an extinct genus of boreopterid pterosaur from the Early Cretaceous of western Liaoning Province, China.

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Molar (tooth)

The molars or molar teeth are large, flat teeth at the back of the mouth.

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Mole cricket

Mole crickets are members of the insect family Gryllotalpidae, in the order Orthoptera (grasshoppers, locusts, and crickets).

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Monach Formation

The Monach Formation is a geologic formation of Early Cretaceous (Valanginian) age in the Western Canada Sedimentary Basin that consists primarily of sandstone.

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Monanthesia

Monanthesia is an extinct genus of bennettitalean plant that is known from fossil finds in Europe and North America, which existed during the Early Cretaceous period.

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Mongolosaurus

Mongolosaurus is a genus of titanosauriform sauropod dinosaur which lived during the Early Cretaceous of China.

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Monjurosuchidae

Monjurosuchidae is a family of prehistoric reptiles belonging to the order Choristodera.

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Monjurosuchus

Monjurosuchus is a genus of choristoderan reptile that lived in what is now China and Japan during the Early Cretaceous.

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Monobaatar

Monobaatar is a genus of extinct mammal from the Lower Cretaceous of Mongolia.

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Monocotyledon

Monocotyledons, commonly referred to as monocots, (Lilianae sensu Chase & Reveal) are flowering plants (angiosperms) whose seeds typically contain only one embryonic leaf, or cotyledon.

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Monotreme

Monotremes are one of the three main groups of living mammals, along with placentals (Eutheria) and marsupials (Metatheria).

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Mont Brome

Mont Brome (aka Bromont, Bromount, Mount Brome) is part of the Monteregian Hills in southern Quebec.

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Mont Mégantic

Mont Mégantic (Abenaki: Namesokanjik) is a monadnock located in Québec, Canada, about 15 km north of the border between Québec and the U.S. states of Maine and New Hampshire.

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Mont Rougemont

Mont Rougemont (Abenaki: Wigwômedenek) is part of the Monteregian Hills in southern Quebec.

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Mont Saint-Bruno

Mont Saint-Bruno is part of the Monteregian Hills in southern Quebec, Canada.

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Mont Saint-Grégoire

Mont Saint-Grégoire (height) is a mountain in the Montérégie region of southern Quebec, Canada.

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Mont Saint-Hilaire

Mont Saint-Hilaire (in English: Mount Saint-Hilaire), (see names of mont Saint-Hilaire for other names) is an isolated hill, high, in the Montérégie region of southern Quebec.

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Mont Shefford

Mont Shefford is a Monteregian Hill located in Shefford in the Montérégie region of Quebec, Canada.

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Mont Yamaska

Mont Yamaska is part of the Monteregian Hills in southern Quebec.

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Montanalestes

Montanalestes is an extinct mammal known from the Cretaceous in North America.

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Monte Inici

Monte Inici is a mountain in the comune of Castellammare del Golfo, province of Trapani, Sicily.

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Monteith Formation

The Monteith Formation is a geologic formation of Early Cretaceous (Valanginian) age in the Western Canada Sedimentary Basin that consists primarily of sandstone.

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Montirictus

Montirictus is an extinct genus of tritylodonts known from the Early Cretaceous Kuwajima Formation of Japan.

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Montsecosuchus

Montsecosuchus is an extinct genus of atoposaurid crocodylomorphs.

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Morelladon

Morelladon is an extinct genus of herbivorous styracosternan ornithopod dinosaur, that lived during the Early Cretaceous of Spain, around 130 million years ago.

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Morganucodonta

Morganucodonta ("Glamorgan teeth") is an extinct order of basal mammaliaformes, the precursors to crown-group mammals (Mammalia).

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Morinosaurus

Morinosaurus (meaning "Morini lizard", for an ancient people of northern France) was a genus of sauropod dinosaur from an unnamed formation of Kimmeridgian-age Upper Jurassic rocks from Boulogne-sur-Mer, Départment du Pas-de-Calais, France.

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Morro Solar

Morro Solar (morro in Spanish means: a rounded promontory) is a headland, situated in the district of Chorrillos, to the south of Lima, Peru.

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Morro Solar Group

The Morro Solar Group (Grupo Morro Solar) is a stratigraphic group of Mesozoic-aged sedimentary formations exposed near Lima, Peru.

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Mortoniceras

Mortoniceras is an ammonoid genus belonging to the superfamily Acanthocerataceae, named by Meek in 1876, based on Ammonites vespertinu, named by Morton in 1834.

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Mosasaur

Mosasaurs (from Latin Mosa meaning the 'Meuse river', and Greek σαύρος sauros meaning 'lizard') are an extinct group of large marine reptiles containing 38 genera in total.

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Mount Bonnell

Mount Bonnell, also known as Covert Park, is a prominent point alongside the Lake Austin portion of the Colorado River in Austin, Texas.

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Mount Donbeh

Mount Donbeh or Kuh-e Donbeh is a mountain which is situated just southwest of the city of Isfahan in Isfahan Province in Iran.

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Mount Ishikari

is part of the Ishikari Mountains, Hokkaidō, Japan.

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Mount Kolah Qazi

Mount Kolah Qazi or Kuh-e Kolah Qazi is a mountain that is located about 30 kilometres southeast of the city of Isfahan in Isfahan Province in Iran.

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Mount Qaruneh

Mount Qaruneh or Kuh-e Qaruneh is a mountain which is located about 30 kilometres southeast of the city of Isfahan in Isfahan Province in Iran.

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Mount Rebun

is the highest point on Rebun Island in Rebun, Hokkaidō, Japan.

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Mount Royal

Mount Royal (Mont Royal) is a large volcanic-related hill or small mountain in the city of Montreal, immediately west of Downtown Montreal, Quebec, Canada.

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Mount Rundle

Mount Rundle is a mountain in Canada's Banff National Park overlooking the towns of Banff and Canmore, Alberta.

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Mount Shah Kuh

Shah Kuh or Mount Shah Kuh is a mountain which is located about 15 kilometres south of the city of Isfahan in Isfahan Province in Iran.

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Mount Soffeh

Mount Soffeh or Kuh-e Soffeh is a mountain that is situated just south of the city of Isfahan, southeast of Mount Donbeh and south of the Zayanderud River in Iran.

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Mountfield, East Sussex

Mountfield is a village and civil parish in the Rother District of East Sussex three miles (4.8 km) north-west of Battle.

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Muir Seamount

Muir Seamount is a seamount (underwater volcano), located at.

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Muiscasaurus

Muiscasaurus is an extinct genus of ophthalmosaurid Ichthyosaur that lived in modern Colombia during the Early Cretaceous.

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Multituberculata

Multituberculata (commonly known as multituberculates, named for the multiple tubercles of their teeth) is an extinct taxon of rodent-like allotherian mammals that existed for approximately 166 million years, the longest fossil history of any mammal lineage.

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Mushroom Rock State Park

Mushroom Rock State Park, located in the Smoky Hills region of north-central Kansas, is noted for its mushroom rock formations.

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Muttaburrasaurus

Muttaburrasaurus was a genus of herbivorous ornithopod dinosaur, which lived in what is now northeastern Australia sometime between 112 and 99.6 million years agoHoltz, Thomas R. Jr.

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Myanmymar

Myanmymar is an extinct genus of fairyfly preserved in amber from Myanmar.

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Mycetophagites

Mycetophagites is an extinct fungal genus of mycoparasitic in the order Hypocreales.

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Myctophiformes

The Myctophiformes are an order of ray-finned fishes consisting of two families of deep-sea marine fish, most notably the highly abundant lanternfishes (Myctophidae).

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Myrmecia (ant)

Myrmecia is a genus of ants first established by Danish zoologist Johan Christian Fabricius in 1804.

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Mythunga

Mythunga is a genus of pterodactyloid pterosaur from the late Early Cretaceous of Australia.

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Myxophaga

Myxophaga is the second smallest suborder of the Coleoptera after Archostemata, consisting of roughly 65 species of small to minute beetles in four families.

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Nanantius

Nanantius is a genus of extinct presumably enantiornithean avialan ("bird" in the broad sense of the word) known from the Early Cretaceous (Albian, c. 100-112 mya) of Australia.

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Nannosuchus

Nannosuchus (meaning "dwarf crocodile") is an extinct genus of goniopholidid mesoeucrocodylian from the Berriasian of England.

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Nanshiungosaurus

Nanshiungosaurus is a genus of therizinosaurian theropod dinosaur from the Cretaceous of China.

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Napan Formation

The Napan Formation is an Early Cretaceous geologic formation.

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Nautilus

The nautilus (from the Latin form of the original ναυτίλος, 'sailor') is a pelagic marine mollusc of the cephalopod family Nautilidae, the sole extant family of the superfamily Nautilaceae and of its smaller but near equal suborder, Nautilina.

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Necroraphidia

Necroraphidia is an extinct genus of snakefly in the family Mesoraphidiidae.

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Nemesiidae

The Nemesiidae are a spider family of the infraorder Mygalomorphae.

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Nemicolopterus

Nemicolopterus is a genus of pterodactyloid pterosaur described in 2008.

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Neobatrachia

The Neobatrachia are a suborder of the Anura, the order of frogs and toads.

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Neochoristodera

Neochoristodera is a lineage of specialised crocodile-like fully aquatic choristodere reptiles.

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Neocomian Sands

The Neocomian Sands is an Early Cretaceous geologic formation.

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Neocomitidae

Neocomitidae is a family of Lower Cretaceous ammonitids comprising genera with strongly ribbed evolute (all whorls exposed) to smooth, fairly involute (inner whorls mostly hidden) shells.

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Neogastropoda

Neogastropoda is a clade of sea snails, marine gastropod mollusks.

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Neognathae

Neognaths (Neognathae) are birds within the subclass Neornithes of the class Aves.

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Neopholidophoropsis

Neopholidophoropsis is an extinct genus of prehistoric ray-finned fish that lived during the Aptian stage of the Early Cretaceous epoch.

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Neorhombolepis

Neorhombolepis is an extinct genus of prehistoric ray-finned fish that lived during the Early Cretaceous epoch.

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Neovenator

Neovenator (nee-o-ven-a-tor) which means "new hunter" is a genus of allosauroid dinosaur.

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Neovenatoridae

Neovenatoridae is a family of large carnivorous dinosaurs representing a branch of the allosauroids, a large group of carnosaurs that also includes the sinraptorids, carcharodontosaurids, and allosaurids.

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Nesselberg

The Nesselberg is a ridge up to high in the Calenberg Highland which, together with the Kleiner Deister and the Osterwald, forms a group of three contiguous hill regions in the northwestern part of the Leine Uplands.

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Neuropterida

The Neuropterida are a clade, sometimes placed at superorder level, of holometabolous insects with over 5,700 described species, containing the orders Neuroptera (lacewings, antlions), Megaloptera (alderflies, dobsonflies), and Raphidioptera (snakeflies).

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Neusibatrachus

Neusibatrachus is an extinct genus of prehistoric amphibian from Spain.

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Neustosaurus

Neustosaurus is a genus of marine crocodyliform from the Early Cretaceous.

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Nichollssaura

No description.

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Nigersaurus

Nigersaurus is a genus of rebbachisaurid sauropod dinosaur that lived during the middle Cretaceous period, about 115 to 105 million years ago.

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Nikanassin Formation

The Nikanassin Formation is a stratigraphic unit of Late Jurassic (Portlandian) to Early Cretaceous (Barremian) age.

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Nine Acres Pit

Nine Acres Pit is a 20.7 hectare geological Site of Special Scientific Importance north-east of Leighton Buzzard in Bedfordshire.

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Ningchengopterus

Ningchengopterus is a genus of pterodactyloid pterosaur from the Early Cretaceous (Aptian) Yixian Formation of China.

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Ningyuansaurus

Ningyuansaurus is a basal oviraptorosaurian dinosaur genus.

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Nodosauridae

Nodosauridae is a family of ankylosaurian dinosaurs, from the Late Jurassic to the Late Cretaceous Period of what are now North America, Europe, Asia, Africa, and Antarctica.

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Nodosaurinae

Nodosaurinae is a group of ankylosaurian dinosaurs named in 1919 by Othenio Abel.

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Noguerornis

Noguerornis is a genus of enantiornithine bird possibly related to Iberomesornis.

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Norellius

Norellius is an extinct genus of scleroglossan lizard from the Early Cretaceous of Mongolia.

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Noripterus

Noripterus (meaning "lake wing" from Mongolian nuur, "lake" and Greek pteron, "wing") is a genus of dsungaripterid pterodactyloid pterosaur from Lower Cretaceous-age Lianmuqin Formation in the Junggar Basin of Xinjiang, China.

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Normanniasaurus

Normanniasaurus (Normannia lizard) is an extinct genus of basal titanosaur sauropod known from the Early Cretaceous (Albian stage) Poudingue Ferrugineux Formation of Seine-Maritime, northwestern France.

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North Downs

The North Downs are a ridge of chalk hills in south east England that stretch from Farnham in Surrey to the White Cliffs of Dover in Kent.

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North Sea oil

North Sea oil is a mixture of hydrocarbons, comprising liquid petroleum and natural gas, produced from petroleum reservoirs beneath the North Sea.

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Northern Harz Boundary Fault

The Northern Harz Boundary Fault (Harznordrandverwerfung, Nordharzrandverwerfung or Harznordrandstörung) is a geological fault where the Harz Block, which consists of rocks formed during the Palaeozoic Era and folded in the course of Hercynian mountain building, borders on the Subhercynian Basin or Harz Foreland.

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Notochelone

Notochelone is an extinct genus of sea turtle, which existed about 100 million years ago.

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Notopalaeognathae

Notopalaeognathae is a clade that contains the order Rheiformes (rheas), the clade Novaeratitae (birds such as the kiwis and the emus), the order Tinamiformes (tinamous) and the extinct order Dinornithiformes (the moas).

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Notosuchia

Notosuchia is a suborder of primarily Gondwanan mesoeucrocodylian crocodylomorphs that lived during the Jurassic and Cretaceous.

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Nqwebasaurus

Nqwebasaurus (anglicized as) is a basal coelurosaur and is the basal-most member of the coelurosaurian clade Ornithomimosauria from the Early Cretaceous of South Africa.

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Nubian Sandstone

The Nubian Sandstone is a variety of sedimentary rock deposited on the Precambrian basement in the eastern Sahara, north-east Africa and Arabian Peninsula.

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Nurhachius

Nurhachius is a genus of istiodactylid pterodactyloid pterosaur from the Barremian-Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China.

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Nuthetes

Nuthetes is the name given to a dubious, possibly dromaeosaurid, genus of theropod dinosaur, known only from fossil teeth and jaw fragments found in rocks of the middle Berriasian (Early Cretaceous) age in the Cherty Freshwater Member of the Lulworth Formation in England.

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Nybelinoides

Nybelinoides is an extinct genus of prehistoric ray-finned fish from the Early Cretaceous.

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Nyctosauridae

Nyctosauridae (meaning "night lizards" or "bat lizards") is a family of specialized soaring pterosaurs of the late Cretaceous Period of North America and, possibly, Europe.

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Nymphaeaceae

Nymphaeaceae is a family of flowering plants, commonly called water lilies.

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Nymphaeales

The Nymphaeales are an order of flowering plants, consisting of three families of aquatic plants, the Hydatellaceae, the Cabombaceae, and the Nymphaeaceae (water lilies).

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Obernkirchen Sandstein

The Obernkirchen Sandstein is a geological formation in Lower Saxony, Germany whose strata date back to the Early Cretaceous.

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Odontornithes

Odontornithes is an obsolete and disused taxonomic term proposed by Othniel Charles Marsh for birds possessing teeth, notably the genera Hesperornis and Ichthyornis from the Cretaceous deposits of Kansas.

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Oil shale in Australia

There are oil shale deposits in Australia which range from small deposits to large reserves.

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Omnivoropterygidae

Omnivoropterygidae (meaning "omnivorous wings") is a family of primitive avialans known exclusively from the Jiufotang Formation of China.

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Omnivoropteryx

Omnivoropteryx (meaning "omnivorous wing") is a genus of primitive flying bird from the early Cretaceous Upper Jiufotang Formation of China.

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Onchopristis

Onchopristis is a genus of extinct giant sclerorhynchid sawfish from the Lower Cretaceous to Upper Cretaceous of North America, North Africa, Brazil, and New Zealand.

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Ondorukhaa Formation

The Ondorukhaa Formation is a geological formation in Mongolia whose strata date back to the Early Cretaceous.

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Opallionectes

Opallionectes andamookaensis (meaning "the opal swimmer from Andamooka") is the name given to a 5 m (16 ft) long plesiosaur, which is thought to have lived during the early Cretaceous period (Lower middle Aptian), 115 million years ago, in shallow seas covering what is now Australia.

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Ophthalmosaurinae

Ophthalmosaurinae is an extinct subfamily of ophthalmosaurid thunnosaur ichthyosaurs from the Middle Jurassic to the late Early Cretaceous (Bajocian - Albian) of Europe, North America and South America.

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Opiliones

The Opiliones or (formerly Phalangida) are an order of arachnids colloquially known as harvestmen, harvesters or daddy longlegs.

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Oplosaurus

Oplosaurus (meaning "armed or weapon lizard" or "armoured lizard"; see below for discussion) was a genus of sauropod dinosaur from the Barremian-age Lower Cretaceous Wessex Formation of the Isle of Wight, England.

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Orb-weaver spider

Orb-weaver spiders or araneids are members of the spider family Araneidae.

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Ordosemys

Ordosemys is an extinct genus of sea turtle from the Cretaceous period.

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Origin of birds

The scientific question of within which larger group of animals birds evolved, has traditionally been called the origin of birds.

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Ornithocheirae

Ornithocheirae is an extinct clade of pteranodontoid pterosaurs from the Early Cretaceous to the Late Cretaceous (middle Barremian to middle Campanian stages) of Asia, Europe, North America and South America.

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Ornithocheiridae

Ornithocheiridae is a group of pterosaurs within the suborder Pterodactyloidea.

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Ornithocheiroidea

Ornithocheiroidea is a group of pterosaurs within the extinct suborder Pterodactyloidea.

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Ornithocheiromorpha

Ornithocheiromorpha is a group of pterosaurs within the suborder Pterodactyloidea.

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Ornithocheirus

Ornithocheirus (from Ancient Greek "ὄρνις", meaning bird, and "χεῖρ", meaning hand) is a pterosaur genus known from fragmentary fossil remains uncovered from sediments in the UK.

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Ornithodesmus

Ornithodesmus (meaning "bird link") is a genus of small, dromaeosaurid dinosaur from the Isle of Wight in England, dating to about 125 million years ago.

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Ornithomimosauria

The Ornithomimosauria, ornithomimosaurs ("bird-mimic lizards") or ostrich dinosaurs are theropod dinosaurs which bore a superficial resemblance to modern ostriches.

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Ornithopsis

Ornithopsis (meaning "bird-likeness") was a medium-sized Early Cretaceous sauropod dinosaur, from England.

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Ornithostoma

Ornithostoma (meaning "bird mouth") is a genus of pterodactyloid pterosaurs.

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Ornithothoraces

Ornithothoraces is a group of avialans that includes all enantiornithes ("opposite birds") and the euornithes ("true birds"), which includes modern birds and their closest ancestors.

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Ornithurae

Ornithurae (meaning "bird tails" in Greek) is a natural group which includes the common ancestor of Ichthyornis, Hesperornis, and all modern birds as well as all other descendants of that common ancestor.

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Orthocerida

Orthocerida is an order of extinct Orthoceratoid cephalopods also known as the Michelinocerda that lived from the Early Ordovician possibly to the Late Triassic.

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Osmakasaurus

Osmakasaurus is a genus of herbivorous iguanodontian dinosaur. It is a basal iguanodontian which lived during the lower Cretaceous period (Valanginian age) in what is now Buffalo Gap of South Dakota, United States. It is known from the Chilson Member of the Lakota Formation. This genus was named by Andrew T. McDonald in 2011 and the type species is Osmakasaurus depressus. O. depressus was previously referred to as Camptosaurus depressus, and was first described in 1909 by Charles W. Gilmore.

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Osmeriformes

The Osmeriformes comprise an order of ray-finned fish that includes the true or freshwater smelts and allies, such as the galaxiids and noodlefishes; they are also collectively called osmeriforms.

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Osmunda vancouverensis

Osmunda vancouverensis is an extinct species of Osmunda ferns.

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Osmundaceae

The Osmundaceae (royal fern family) is a family of four to six extant genera and 18–25 known species.

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Osmylidae

Osmylidae are a small family of winged insects of the net-winged insect order Neuroptera.

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Otodontidae

Otodontidae is an extinct family of sharks, belonging to the order Lamniformes.

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Otomitla

Otomitla is an extinct genus of prehistoric ray-finned fish that lived during the Early Cretaceous epoch.

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Ouranosaurus

Ouranosaurus (meaning "brave (monitor) lizard", alternatively "sky lizard" after the primordial Greek god Ouranos) is a genus of herbivorous iguanodont dinosaur that lived during the early Cretaceous (Aptian to early Albian age) at some point between 125 and 112 million years ago, in what is now Africa.

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Oweniasuchus

Oweniasuchus is an extinct genus of goniopholidid mesoeucrocodylian.

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Owenodon

Owenodon is a genus of iguanodontian dinosaur known from a partial lower jaw discovered in Early Cretaceous-age rocks of Durlston Bay, Dorset, United Kingdom.

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Oxalaia

Oxalaia (in reference to the African deity Oxalá) is a genus of spinosaurid theropod dinosaur that lived in what is now the Northeast Region of Brazil during the Cenomanian of the Late Cretaceous, sometime between 93.9 to 100.5 million years ago.

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Oxycoryninae

Oxycoryninae are subfamily of primitive weevils of the family Belidae, but sometimes treated as a distinct family Oxycorynidae.

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Pachycephalosauria

Pachycephalosauria (from Greek παχυκεφαλόσαυρος for 'thick headed lizards') is a clade of ornithischian dinosaurs.

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Pachycheilosuchus

Pachycheilosuchus (meaning "thick lipped crocodile") is an extinct genus of mesoeucrocodylian from the Early Cretaceous of Texas, United States.

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Pachygenys

Pachygenys ("thick jaw") is a genus of scincomorphan lepidosaur from the Lower Cretaceous of Japan.

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Pachyrizodus

Pachyrizodus is an extinct genus of prehistoric bony fish that lived from the Albian to the Campanian stage of the Early Cretaceous epoch.

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Pachyteuthis

Pachyteuthis is a genus of belemnite that lived from the Early Jurassic to the Early Cretaceous, and has been found in Asia and Europe.

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Padillasaurus

Padillasaurus is an extinct genus of brachiosaurid sauropod known from the Early Cretaceous (Barremian stage) Paja Formation in Colombia.

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Paja Formation

The Paja Formation is a Mesozoic geologic formation from the Aptian epochs of the Early Cretaceous of central Colombia, extending on the Altiplano Cundiboyacense in the Eastern Ranges of the Colombian Andes in the departments of Cundinamarca, Santander and Boyacá.

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Pajarito, Boyacá

Pajarito is a town and municipality in the La Libertad Province, part of the Colombian department of Boyacá.

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Pakasuchus

Pakasuchus is a genus of notosuchian crocodyliform distinguished by its unusual mammal-like appearance, including mammal-like teeth that would have given the animal the ability to chew.

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Palaeoagaracites

Palaeoagaracites is an extinct monotypic genus of gilled fungus in the order Agaricales.

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Palaeoaldrovanda

Palaeoaldrovanda splendens is a form taxon of uncertain identity.

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Palaeocursornis

Palaeocursornis is a monotypic genus of pterosaurs.

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Palaeoechinastacus

Palaeoechinastacus australianus is a species of freshwater crayfish known from Early Cretaceous fossils from Victoria, Australia.

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Palaeognathae

Palaeognathae, or paleognaths, is one of the two living clades of birds – the other being Neognathae.

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Palaeonisciformes

The Palaeonisciformes are an extinct order of early ray-finned fishes (Actinopterygii) which began in the Late Silurian and ended in the Late Cretaceous.

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Palaeontinidae

Palaeontinidae, commonly known as giant cicadas, is an extinct family of cicadomorphs.

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Palaeopagurus

Palaeopagurus is an extinct genus of hermit crab from the Lower Cretaceous.

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Palaeornis cliftii

"Palaeornis" cliftii is a pterosaur species known from parts of a single humerus (upper arm bone) found in early Cretaceous period rocks of the upper Tunbridge Wells Sand Formation, England.

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Palaeosabatinca

Palaeosabatinca is an extinct genus of small primitive metallic moths within the family Micropterigidae, containing one species, Palaeosabatinca zherichini.

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Palaeoscincus

Palaeoscincus (meaning "ancient skink" from the Greek παλαιός and σκίγγος) is a dubious genus of ankylosaurian dinosaur based on teeth from the mid-late Campanian-age Upper Cretaceous Judith River Formation of Montana.

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Paleobiota of the Yixian Formation

The Yixian Formation is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans about 5 million years during the early Cretaceous period (early Aptian stage).

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Paleocene

The Paleocene or Palaeocene, the "old recent", is a geological epoch that lasted from about.

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Paleontology in Arkansas

Paleontology in Arkansas refers to paleontological research occurring within or conducted by people from the U.S. state of Arkansas.

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Paleontology in Delaware

The location of the state of Delaware Paleontology in Delaware refers to paleontological research occurring within or conducted by people from the U.S. state of Delaware.

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Paleontology in Maryland

The location of the state of Maryland Paleontology in Maryland refers to paleontological research occurring within or conducted by people from the U.S. state of Maryland.

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Paleontology in Montana

Paleontology in Montana refers to paleontological research occurring within or conducted by people from the U.S. state of Montana.

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Paleontology in New Mexico

Paleontology in New Mexico refers to paleontological research occurring within or conducted by people from the U.S. state of New Mexico.

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Paleontology in Oklahoma

Paleontology in Oklahoma refers to paleontological research occurring within or conducted by people from the U.S. state of Oklahoma.

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Paleontology in Texas

Paleontology in Texas refers to paleontological research occurring within or conducted by people from the U.S. state of Texas.

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Paleontology in the United States

Paleontology in the United States refers to paleontological research occurring within or conducted by people from the United States.

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Paleontology in Utah

The location of the state of Utah Paleontology in Utah refers to paleontological research occurring within or conducted by people from the U.S. state of Utah.

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Paleontology in Washington, D.C.

The location of Washington, D.C. Paleontology in Washington, D.C., refers to paleontological research occurring within or conducted by people from Washington, D.C..

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Paluxy Formation

The Paluxy Formation is a geological formation found in Texas, Louisiana, Arkansas, Mississippi and Oklahoma, whose strata date back to the Early Cretaceous.

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Paluxysuchus

Paluxysuchus is an extinct genus of neosuchian crocodyliform known from the Early Cretaceous Twin Mountains Formation (late Aptian stage) of north-central Texas.

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Pamizinsaurus

Pamizinisaurus is a genus of sphenodontian reptile known from Lower Cretaceous (Albian) Tlayúa Formation of Mexico.

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Pandermochelys

Pandermochelys is a clade of sea turtles belonging to the superfamily Chelonioidea.

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Pangaea

Pangaea or Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras.

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Pangupterus

Pangupterus (meaning Pangu wing) is a genus of pterodactyloid pterosaur from the Early Cretaceous Jiufotang Formation of China.

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Pannaulika

Pannaulika triassica is a prehistoric plant species assigned to a small, incomplete leaf and two "flowers".

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Papo Seco Formation

The Papo Seco Formation is a geological formation in Portugal, whose strata date back to the Early Cretaceous.

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Pappotherium

Pappotherium is an extinct genus of mammals from the Albian (early Cretaceous) of Texas (USA), known from a fossilized maxilla fragment bearing two tribosphenic molars, discovered within the Glen Rose Formation near Decatur, Wise County, Texas.

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Parabohaiornis

Parabohaiornis is an extinct genus of bohaiornithid enantiornithean dinosaur known from the Early Cretaceous of Liaoning Province, northeastern China.

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Parahongshanornis

Parahongshanornis is an extinct genus of early bird from the lower Cretaceous (Aptian stage) of what is now Liaoning Province, north-eastern China.

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Paralepidosteus

Paralepidosteus is an extinct genus of prehistoric bony fish that lived from the Albian to the Campanian stage of the Early Cretaceous epoch.

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Paralligator

Paralligator is an extinct genus of neosuchian crocodile that lived during the Late Cretaceous (Maastrichtian) period in what is now the Gobi desert of Mongolia, approximately 71-70 million years ago.

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Paramacellodidae

Paramacellodidae is an extinct family of scincomorph lizards that first appeared in the Middle Jurassic around 170 million years ago (Ma) and became extinct in the Early Cretaceous about 100 Ma.

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Paramacellodus

Paramacellodus is an extinct genus of scincomorph lizards from the Early Cretaceous of England the Late Jurassic of Portugal and the western United States.

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Paraná and Etendeka traps

The Paraná-Etendeka traps (or Paraná and Etendeka Plateau; or Paraná and Etendeka Province) comprise a large igneous province that includes both the main Paraná traps (in Paraná Basin, a South American geological basin) as well as the smaller severed portions of the flood basalts at the Etendeka traps (in northwest Namibia and southwest Angola).

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Paraná Basin

The Paraná Basin (Bacia do Paraná, Cuenca Paraná) is a large cratonic sedimentary basin situated in the central-eastern part of South America.

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Paranthodon

Paranthodon is a genus of stegosaurian dinosaur that lived in South Africa during the Early Cretaceous, between 139 and 131 million years ago.

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Paraprotopteryx

Paraprotopteryx is a genus of enantiornithean birds from the Mesozoic of China.

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Parasabatinca

Parasabatinca is an extinct genus of small primitive metallic moths within the extant family Micropterigidae or extinct family Eolepidopterigidae, containing two species.

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Paratheria (mammals)

Paratheria is an obsolete term for a taxonomic group including the xenarthran mammals (sloths, anteaters, and armadillos) and various groups thought to be related to them.

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Parksosauridae

Parksosauridae is a clade or family of small ornithischians which have previously been generally allied to hypsilophodontids.

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Patricosaurus

"Patricosaurus" (meaning "paternal lizard") is the name given to a dubious and chimeric genus of reptile from the Early Cretaceous.

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Paulchoffatia

Paulchoffatia is a genus of extinct mammal of the Upper Jurassic - Lower Cretaceous.

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Paurodontidae

Paurodontidae is a family of Late Jurassic to Early Cretaceous mammals in the order Dryolestida.

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Paw Paw Formation

The Paw Paw Formation is a geological formation in Texas whose strata date back to the Early Cretaceous.

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Pawpawsaurus

Pawpawsaurus, meaning "Pawpaw Lizard", is a nodosaurid ankylosaur from the Cretaceous (late Albian) of Tarrant County, Texas, discovered in May 1992.

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Peace River Formation

The Peace River Formation is a stratigraphical unit of middle Albian age in the Western Canadian Sedimentary Basin.

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Pedrerasaurus

Pedrerasaurus is an extinct genus of scincogekkonomorph lizard from the Early Cretaceous of Spain.

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Peipiaosteus

Peipiaosteus is an extinct genus of prehistoric ray-finned fish, closely related to living sturgeon and paddlefish.

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Pelecanimimus

Pelecanimimus (meaning "pelican mimic") is a genus of basal ("primitive") ornithomimosaurian theropod dinosaur from the Early Cretaceous of Spain.

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Peloroplites

Peloroplites (from Greek pelor "monster", and hoplites, "armoured soldier") is a genus of nodosaurid armored dinosaur from Lower Cretaceous rocks of Utah, United States.

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Pelorosaurus

Pelorosaurus (meaning "monstrous lizard") is the generic name of a sauropod dinosaur.

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Pelotas Basin

The Pelotas Basin (Bacia de Pelotas, Cuenca de Pelotas) is a mostly offshore sedimentary basin of approximately in the South Atlantic, administratively part of the southern states Santa Catarina and Rio Grande do Sul of Brazil and the departments Cerro Largo, Rocha and Treinta y Tres of Uruguay.

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Peltopleuriformes

Peltopleuriformes were an extinct order of prehistoric bony fish.

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Pembury Cutting and Pit

Pembury Cutting and Pit is a geological Site of Special Scientific Interest east of Tunbridge Wells in Kent.

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Penelopognathus

Penelopognathus ("wild duck jaw") is a genus of dinosaur which lived during the Early Cretaceous.

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Pengornis

Pengornis is the largest known enantiornithine bird from the Early Cretaceous of northeast China.

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Pengornithidae

Pengornithidae is a group of early enantiornithines from the early Cretaceous Period of China.

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Pentasteria

Pentasteria is an extinct genus of sea star that lived from the Early Jurassic to the Early Cretaceous.

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Peramuridae

The family Peramuridae is a possible ancestor of early therians.

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Perisphinctoidea

Perisphinctoidea, formerly Perisphinctaceae, is a superfamily of Middle Jurassic (Bajocian) to Lower Cretaceous (Barremian) ammonites, commonly with evolute shells with strong ribbing that typically divides about mid flank before crossing the venter.

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Petalopteryx

Petalopteryx is an extinct genus of prehistoric ray-finned fish that lived during the Early Cretaceous epoch.

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Phaedrolosaurus

Phaedrolosaurus is a genus of theropod dinosaur, based on a single tooth possibly from the Valanginian-Albian-age Lower Cretaceous Lianmugin Formation of Wuerho, Xinjiang, China.

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Philippe Taquet

Philippe Taquet (b. April 25, 1940 Saint-Quentin, Aisne) is a French paleontologist who specializes in dinosaur systematics of finds primarily in northern Africa.

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Philydrosaurus

Philydrosaurus is an extinct genus of choristoderan which existed in China during the Early Cretaceous.

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Pholidosaurus

Pholidosaurus is an extinct genus of neosuchian crocodylomorph.

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Phra Wihan Formation

The Early Cretaceous Phra Wihan Formation is the second lowest member of the Mesozoic Korat Group which outcrops in Northeast Thailand.

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Phu Kradung Formation

The Early Cretaceous Phu Kradung Formation is the lowest member of the Mesozoic Korat Group which outcrops on the Khorat Plateau in Isan, Thailand.

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Phu Phan Mountains

The Phu Phan mountains (ทิวเขาภูพาน) are a range of hills dividing the Khorat Plateau of the Isan region of Thailand into two basins: the northern Sakhon Nakhon Basin, and the southern Khorat Basin.

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Phuwiangosaurus

Phuwiangosaurus (meaning "Phu Wiang lizard") is a genus of euhelopodid dinosaur from the Early Cretaceous (Valanginian-Hauterivian) Sao Khua Formation of Thailand.

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Physiology of dinosaurs

The physiology of dinosaurs has historically been a controversial subject, particularly their thermoregulation.

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Pietraroiasuchus

Pietraroiasuchus is an extinct genus of hylaeochampsid eusuchian crocodylomorph from southern Apennines, Italy.

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Pinheirodon

Pinheirodon is a genus of extinct mammal from Portugal.

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Pinheirodontidae

Pinheirodontidae is a poorly known family of fossil mammals within the order Multituberculata.

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Piscivoravis

Piscivoravis is an extinct genus of fish-eating ornithuromorphs known from the Early Cretaceous Jiufotang Formation (Aptian age) of western Liaoning Province, northeastern China.

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Plagiaulacidae

Plagiaulacidae is a family of fossil mammals within the order Multituberculata.

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Plagiaulax

Plagiaulax is a genus of mammal from the Lower Cretaceous of Europe.

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Planet Dinosaur

Planet Dinosaur, is a six-part documentary television series created by Nigel Paterson and Phil Dobree, produced by the BBC, and narrated by John Hurt, first aired in the United Kingdom in 2011, produced by VFX studio Jellyfish Pictures.

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Planicoxa

Planicoxa is a genus of advanced iguanodontian dinosaur from the Early Cretaceous of North America.

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Plataleorhynchus

Plataleorhynchus was a genus of ctenochasmatid pterodactyloid pterosaur from the Tithonian-Berriasian-age Upper Jurassic or Lower Cretaceous Purbeck Limestone of Dorset, England.

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Plate reconstruction

Plate reconstruction is the process of reconstructing the positions of tectonic plates relative to each other (relative motion) or to other reference frames, such as the earth's magnetic field or groups of hotspots, in the geological past.

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Platypterygius

Platypterygius is an ichthyosaur of the family Ophthalmosauridae.

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Plegiocidaris

Plegiocidaris is an extinct genus of echinoids that lived from the Triassic to the Early Cretaceous.

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Plesiosaur size

Plesiosaurs are extinct marine reptiles.

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Plesiosauria

Plesiosauria (Greek: πλησίος, plesios, meaning "near to" and Sauria) or plesiosaurs are an order or clade of Mesozoic marine reptiles (marine Sauropsida), belonging to the Sauropterygia.

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Pleurosternon

Pleurosternon is an extinct genus of cryptodire turtle from the late Jurassic period to the early Cretaceous period.

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Plutonisaurus

Plutonisaurus is an extinct genus of ophthalmosaurid ichthyosaur from the Early Cretaceous (late Hauterivian) of the vicinity of Ulyanovsk, European Russia.

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Poaceae

Poaceae or Gramineae is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses, commonly referred to collectively as grass.

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Polacanthinae

Polacanthinae is a grouping of ankylosaurs, possibly primitive nodosaurids.

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Polacanthus

Polacanthus, deriving its name from the Ancient Greek polys-/πολύς- "many" and akantha/ἄκανθα "thorn" or "prickle", is an early armoured, spiked, plant-eating ankylosaurian dinosaur from the early Cretaceous period of England.

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Polyclonoolithus

Polyclonoolithus is an oogenus of fossil dinosaur egg.

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Polyglyphanodontia

Polyglyphanodontia is an extinct clade of lizards from the Cretaceous that includes around a dozen genera.

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Polyptychites

Polyptichites is the perisphictacean ammonite genus from the Lower Cretaceous of Russia.

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Polyxenida

Polyxenida is an order of millipedes readily distinguished by a unique body plan consisting of a soft, non-calcified body ornamented with tufts of bristles – traits that have inspired the common names "bristly millipedes" or "pincushion millipedes".

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Potrerillos, Chile

Potrerillos is a ghost town in the interior of Atacama Region, Chile.

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Potton Sands

The Potton Sands is a geological formation in Bedfordshire, England whose strata date back to the Early Cretaceous.

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Považský Inovec

Považský Inovec is a mountain range in western Slovakia, named after the Váh river.

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Powder River Basin

The Powder River Basin is a geologic structural basin in southeast Montana and northeast Wyoming, about east to west and north to south, known for its coal deposits.

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Praeichneumon

Praeichneumon is an extinct genus of ichneumon wasps from the Lower Cretaceous of Mongolia and the Russian region of Transbaikalia.

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Pranhita–Godavari Basin

The Pranhita–Godavari Basin is a northwest–southeast striking geological structural basin (rift basin) in eastern India.

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Prehistoric Planet

Prehistoric Planet is a revision of the BBC's Walking with Dinosaurs and Walking with Beasts series, done by Discovery Channel and NBC for the Discovery Kids network.

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Prejanopterus

Prejanopterus is an extinct genus of pterodactyloid pterosaur from the Lower Cretaceous (lower Aptian age) layers of the Leza Formation of La Rioja, Spain.

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Priconodon

Priconodon is an extinct genus of dinosaur (perhaps nodosaurid), known from its large teeth.

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Proa valdearinnoensis

Proa is an extinct genus of styracosternan iguanodont known from the Early Cretaceous Escucha Formation (lower Albian stage) of Teruel Province, Spain.

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Proceratosauridae

Proceratosauridae is a family or clade of theropod dinosaurs from the Middle Jurassic to the Early Cretaceous.

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Prodeinodon

Prodeinodon (meaning "Before Deinodon") is a dubious genus of theropod dinosaur from the Early Cretaceous (Barremian to Aptian stages) of China and Mongolia.

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Proornis

"Proornis" is an extinct genus of basal bird from the Early Cretaceous (Barremian, 130-125 mya) of northernmost North Korea.

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Propanoplosaurus

Propanoplosaurus is a genus of herbivorous nodosaurid dinosaur from the Early Cretaceous Patuxent Formation of Maryland, USA.

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Proplanicoxa

Proplanicoxa is a genus of iguanodont dinosaur which existed in what is now England during the Early Cretaceous period (late Barremian stage, around 126 mya).

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Proraphidia

Proraphidia is a genus of snakefly in the extinct family Mesoraphidiidae.

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Protarchaeopteryx

Protarchaeopteryx (meaning "before Archaeopteryx") is a genus of turkey-sized feathered theropod dinosaur from China.

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Protopsephurus

Protopsephurus is an extinct genus of paddlefish which existed in China during the Barremian age to the Aptian age of the Early Cretaceous period.

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Protopteryx

Protopteryx is an extinct genus of bird and the most primitive enantiornithean, from the Cretaceous period.

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Protostegidae

Protostegidae is a family of extinct marine turtles that lived during the Cretaceous period.

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Protosuchidae

Protosuchidae was a family of crocodylmorph reptiles from the Late Triassic, Jurassic, and Cretaceous time periods.

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Prudhoe Bay Oil Field

Prudhoe Bay Oil Field is a large oil field on Alaska's North Slope.

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Pseudohaploceras

Pseudohaploceras is a genus of desmosceratid ammonites from the Early Cretaceous; Valanginian to Albian epochs.

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Pseudoosterella ubalaensis

Pseudoosterella ubalaensis is an extinct ammonoid cephalopod species belonging to the genus Pseudoosterella in the family of Oosterellidae.

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Psittacosaurus

Psittacosaurus ("parrot lizard") is a genus of extinct ceratopsian dinosaur from the Early Cretaceous of what is now Asia, existing between 126 and 101 million years ago.

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Psychopsidae

Psychopsidae is a family of winged insects of the order Neuroptera.

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Pteranodontia

Pteranodontia is an extinct group of ornithocheiroid pterosaurs that lived from the Early Cretaceous to the Late Cretaceous (middle Barremian to middle Campanian stages) of Asia, Europe, North America and South America.

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Pteranodontoidea

Pteranodontoidea is an extinct clade of ornithocheiroid pterosaurs from the Early Cretaceous to the Late Cretaceous (middle Barremian to middle Campanian stages) of Asia, Europe, North America and South America.

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Pterodactylidae

Pterodactylidae is a controversial group of pterosaurs.

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Pterodaustro

Pterodaustro is a genus of Cretaceous pterodactyloid pterosaur from South America, which lived 105 million years ago.

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Pterofiltrus

Pterofiltrus is a genus of ctenochasmatid pterosaur from the Early Cretaceous of western Liaoning, China.

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Ptilotodon

Ptilotodon is an extinct genus of teiid lizard from the Early Cretaceous of Oklahoma.

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Ptycholepiformes

Ptycholepiformes were an order of extinct prehistoric ray-finned fish.

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Puntanipterus

Puntanipterus was a genus of ?dsungaripterid pterodactyloid pterosaur from the Upper Jurassic-Lower Cretaceous La Cruz Formation of San Luis, Argentina.

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Purbeck Group

The Purbeck Group is an Upper Jurassic to Lower Cretaceous lithostratigraphic group (a sequence of rock strata) in south-east England.

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Purbeck Marble

Purbeck Marble is a fossiliferous limestone found in the Isle of Purbeck, a peninsula in south-east Dorset, England.

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Purbeck stone

Purbeck stone refers to building stone taken from a series of limestone beds found in the Upper Jurassic to Lower Cretaceous Purbeck Group, found on the Isle of Purbeck, Dorset in southern England.

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Purbeckodon

Purbeckodon is an extinct genus of morganucodontan from Early Cretaceous deposits of southeastern Dorset, England.

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Pycnodontiformes

Pycnodontiformes is an extinct order of bony fish.

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Pygostylia

Pygostylia is a group of avialans which includes the Confuciusornithidae and all of the more advanced species, the Ornithothoraces.

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Qaleh Bozi

Qaleh Bozi is a complex of caves sites located about south-southwest of Isfahan, Iran; northeast of Dizicheh and north of Nekouabad and Hassanabad villages.

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Qantassaurus

Qantassaurus is a genus of two-legged, plant-eating ornithischian dinosaur that lived in Australia about 115 million years ago, when the continent was still partly south of the Antarctic Circle.

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Qiaowanlong

Qiaowanlong is a genus of sauropod dinosaur.

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Qiliania

Qiliania (from the Xiongnu qilian, "heaven") is an extinct genus of early bird from the lower Cretaceous (Aptian stage) about 120 million years ago.

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Qingshan Formation

The Qingshan Formation is a geological formation in Shandong, China, whose strata date back to the Early Cretaceous.

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Quiricó Formation

The Quiricó Formation is a geological formation in Minas Gerais, Brazil whose strata date back to the Lower Cretaceous (Early Cretaceous).

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Radiodactylus

Radiodactylus is an extinct genus of non-azhdarchid azhdarchoid pterosaur known from the Early Cretaceous of Texas, southern United States.

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Ranunculaceae

Ranunculaceae (buttercup or crowfoot family; Latin rānunculus "little frog", from rāna "frog") is a family of over 2,000 known species of flowering plants in 43 genera, distributed worldwide.

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Ranunculales

Ranunculales is an order of flowering plants.

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Rapator

Rapator is a genus of theropod dinosaur from the Griman Creek Formation of New South Wales, Australia, dating to the Albian age of the early Cretaceous period, 105 million years ago.

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Rapaxavis

Rapaxavis a genus of enantiornithean bird.

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Raptor Red

Raptor Red is a 1995 American novel by paleontologist Robert T. Bakker.

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Ratchasimasaurus

Ratchasimasaurus (meaning "Ratchasima lizard") is a genus of non-hadrosaurid iguanodontian ornithopod dinosaur from Early Cretaceous (Aptian stage) Khok Kruat Formation of Nakhon Ratchasima Province in northeastern Thailand.

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Rayoso Formation

The Rayoso Formation is a geological formation in the Neuquén Province of Argentina whose strata date back to the Aptian stage of the Early Cretaceous.

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Rayososaurus

Rayososaurus is a genus of plant-eating sauropod dinosaur of the superfamily Diplodocoidea.

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Rebbachisauridae

Rebbachisauridae is a family of sauropod dinosaurs known from fragmentary fossil remains from the Cretaceous of South America, Africa, and Europe.

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Rebbachisaurinae

Rebbachisaurinae is a subfamily within the family Rebbachisauridae, defined to include Rebbachisaurus garasbae and exclude Limaysaurus tessonei.

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ReBecca Hunt-Foster

ReBecca Hunt-Foster is an American paleontologist.

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Regalerpeton

Regalerpeton is an extinct genus of cryptobranchoid salamander known from the Early Cretaceous of Huajiying Formation, China.

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Regnosaurus

Regnosaurus (meaning "Sussex lizard") is a genus of herbivorous stegosaurian dinosaur that lived during the Early Cretaceous Period in what is now England.

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Rehburg Hills

The Rehburg Hills (Rehburger Berge) are a hill range, up to, in the districts of Nienburg and Schaumburg in Lower Saxony, Germany.

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René Chudeau

René Chudeau (21 August 1864, in Angers – 1921) was a French geologist.

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Repenomamus

Repenomamus is a gobiconodontid mammal genus containing two species, Repenomamus robustus and Repenomamus giganticus.

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Requiem shark

Requiem sharks are sharks of the family Carcharhinidae in the order Carcharhiniformes, containing migratory, live-bearing sharks of warm seas (sometimes of brackish or fresh water) such as the spinner shark, the blacknose shark, the blacktip shark, the grey reef shark, and the blacktip reef shark.

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Retodus

Retodus is an extinct genus of prehistoric lungfish found in Cretaceous-aged freshwater strata of Africa.

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Rhachiberothidae

The thorny lacewings, Rhachiberothidae, are a family of winged insects of the order Neuroptera.

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Rhachitomi

Rhachitomi is a group of temnospondyl amphibians that includes all temnospondyls except edopoids and dendrerpetontids.

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Rhamphosuchus

Rhamphosuchus ("Beak crocodile") is an extinct relative of the modern false gharial.

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Rifle Butts Quarry

Rifle Butts Quarry is a Site of Special Scientific Interest (SSSI) in the East Riding of Yorkshire, England.

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Rio Grande Rise

The Rio Grande Rise is an aseismic ocean ridge in the southern Atlantic Ocean off the coast of Brazil.

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River Line (East Sussex)

River Line SSSI is a 1.87 hectare (4.6 acre) geological Site of Special Scientific Interest in East Sussex, England.

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Robert T. Hill

Robert Thomas Hill (August 11, 1858 – July 20, 1941) was a significant figure in the development of American geology during the late nineteenth century and in the early part of the twentieth century.

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Romeral Fault System

The Romeral Fault System (Sistema de Fallas (de) Romeral) is a megaregional system of major parallel and anastomosing faults in the Central Ranges of the Colombian Andes and the Cauca, Amagá, and Sinú-San Jacinto Basins.

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Rubricacaecilia

Rubricacaecilia is an extinct genus of caecilian (limbless amphibian) from the Early Cretaceous Period in Morocco.

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Rugocaudia

Rugocaudia is a potentially dubious extinct genus of basal titanosauriform sauropod dinosaur known from the Early Cretaceous of Montana, United States.

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Rugosuchus

Rugosuchus (meaning "uneven or wrinkled crocodile", in reference to texturing on its upper jaw bones) is an extinct genus of neosuchian crocodyliform from the late Early Cretaceous of China.

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Ruyangosaurus

Ruyangosaurus (Ruyang County lizard) is a genus of titanosauriform sauropod dinosaur recovered from the Early Cretaceous Haoling Formation of China.

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Sabinoso Wilderness

The Sabinoso Wilderness is a area in San Miguel County, New Mexico.

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Saccocoma

Saccocoma is an extinct genus of crinoids that lived from the Late Jurassic to the Early Cretaceous in Europe and North America.

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Sagenopteris

Sagenopteris is a genus of extinct seed ferns from the Triassic to late Early Cretaceous.

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Sangping Formation

The Sangping Formation is a geological formation in Henan, China, whose strata date back to the Early Cretaceous.

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Santanachelys

Santanachelys gaffneyi is an extinct species of sea turtle.

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Santanaraptor

Santanaraptor (meaning "Santana Formation thief") is a genus of theropod dinosaur that lived in South America during the Early Cretaceous (late Aptian-early Albian), about 112 million years ago.

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Santanichthys

Santanichthys diasii is a species of extinct fish that existed around 115 million years ago during the Albian epoch.

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Santos Basin

The Santos Basin (Bacia de Santos) is an approximately large mostly offshore sedimentary basin.

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Sao Khua Formation

The Sao Khua Formation is a middle member of the Khorat Group.

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Sapeornis

Sapeornis is a type of avialan which lived during the early Cretaceous period (late Aptian to early Albian, roughly 125-120 mya).

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Sarcosuchus

Sarcosuchus (meaning "flesh crocodile") is an extinct genus of crocodyliform and distant relative of living crocodylians that lived 112 million years ago.

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Sarraceniaceae

The Sarraceniaceae are a family of pitcher plants, belonging to order Ericales (previously Nepenthales).

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Satapliasaurus

Satapliasaurus is an extinct genus of coelurosaurian theropod dinosaur known from multiple well-preserved trackways and body fossils.

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Saurichthyiformes

Saurichthyiformes is a group of ray-finned fish which existed in China, Europe and North America, during the late Permian to early Jurassic periods.

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Saurodektes

Saurodektes is an extinct genus of owenettid procolophonoid parareptile known from the earliest Triassic deposits of Eastern Cape Province, South Africa.

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Sauropelta

Sauropelta (meaning 'lizard shield') is a genus of nodosaurid dinosaur that existed in the Early Cretaceous Period of North America.

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Sauroplites

Sauroplites (meaning "saurian hoplite") is a genus of herbivorous ankylosaurian dinosaur from the Early Cretaceous of China.

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Sauroposeidon

Sauroposeidon (meaning "lizard earthquake god", after the Greek god Poseidon) is a genus of sauropod dinosaur known from several incomplete specimens including a bone bed and fossilized trackways that have been found in the American states of Oklahoma, Wyoming, and Texas.

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Sáchica

Sáchica is a municipality of Colombia situated approximately west of Tunja in the Ricaurte Province of the department of Boyacá.

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Scansoriopteryx

Scansoriopteryx ("climbing wing") is a genus of avialan dinosaur.

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Sceliages

Sceliages, Westwood, ('σκέλος'.

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Scheenstia

Scheenstia is an extinct genus of neopterygian ray-finned fish from the Cretaceous period.

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Schizooura

Schizooura is a genus of basal ornithuromorph bird known from the Early Cretaceous of Jianchang, western Liaoning, China.

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Scincogekkonomorpha

Scincogekkonomorpha is a clade (evolutionary grouping) of lizards that includes scleroglossans and all lizards more closely related to scleroglossans than to iguanians.

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Scipionyx

Scipionyx (pronounced "SHIH-pee-oh-nicks" or "ship-ee-OH-nicks") is a genus of compsognathid theropod dinosaur from the Early Cretaceous of Italy, around 113 million years ago.

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Scleropages

Scleropages is a genus of fish in the family Osteoglossidae found in Asia and Australia.

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Scotiophryne

Scotiophryne is an extinct genus of prehistoric amphibian.

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Scunthorpe Steelworks

The Iron and Steel Industry in Scunthorpe was established in the mid 19th century, following the discovery and exploitation of middle Lias ironstone east of Scunthorpe, Lincolnshire, England.

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Sea turtle

Sea turtles (superfamily Chelonioidea), sometimes called marine turtles, are reptiles of the order Testudines.

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Sellacoxa

Sellacoxa is a genus of iguanodont dinosaur which existed in what is now England during the Early Cretaceous period (lower Valanginian stage, around 140 mya).

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Sengoku Formation

The Sengoku Formation is an Early Cretaceous geologic formation.

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Serbian Carpathians

Serbian Carpathians (Karpati, Karpatske planine) is a mountain range in eastern Central Serbia.

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Serendipaceratops

Serendipaceratops (meaning "serendipitous horned face") is a dubious genus of herbivorous ornithischian dinosaur from the early Cretaceous Period of Australia.

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Serradraco

Serradraco is a genus of Early Cretaceous pterodactyloid pterosaur living in the area of present England.

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Shamosaurus

Shamosaurus is an extinct genus of herbivorous basal ankylosaurid ankylosaur from Early Cretaceous (Aptian to Albian stage) deposits of Höövör, Mongolia.

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Shanag

Shanag is a genus of dromaeosaurid theropod dinosaur from the Early Cretaceous Period of Mongolia.

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Shantungosuchus

Shantungosuchus is an extinct genus of Early Cretaceous crocodyliform found in China.

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Shanweiniao

Shanweiniao is a genus of long-snouted enantiornithean birds from Early Cretaceous China.

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Shark

Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head.

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Shartegosuchidae

Shartegosuchidae is an extinct family of Late Jurassic and Early Cretaceous crocodylomorphs.

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Shengjingornis

Shengjingornis is a genus of enantiornithean bird known from the Early Cretaceous of Jinzhou, western Liaoning, China.

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Shenqiornis

Shenqiornis is a bird genus of the Enantiornithes.

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Shenzhoupterus

Shenzhoupterus is a genus of chaoyangopterid azhdarchoid pterodactyloid pterosaur from the Lower Cretaceous Jiufotang Formation of Liaoning, China.

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Shenzhousaurus

Shenzhousaurus is a genus of basal ornithomimosaur from the Lower Cretaceous of China.

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Shestakovskaya Svita

The Shestakovskaya Svita is a geological formation in Mongolia and eastern Russia whose strata date back to the Early Cretaceous.

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Shinekhudag Svita

The Shinekhudag Svita is a geological formation in Dundgov, Mongolia whose strata date back to the Early Cretaceous.

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Shinisauria

Shinisauria is a clade or evolutionary grouping of anguimorph lizards that includes the living Chinese crocodile lizard Shinisaurus and several of its closest extinct relatives.

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Shokawa

Shokawa ikoi was a 1.8 m long choristoderan diapsid reptile closely resembling and closely related to the smaller choristoderan, Hyphalosaurus.

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Shomronella

Shomronella jordanica is the only species in the extinct genus Shomronella, a genus of prehistoric frogs.

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Shuangmiaosaurus

Shuangmiaosaurus is a genus of herbivorous ornithischian dinosaur which lived during the late Albian age of the Early Cretaceous Period, about 100 million years ago.

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Siamodon

Siamodon is an extinct genus of iguanodontian ornithopod dinosaur from Early Cretaceous deposits of northeastern Thailand.

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Siamosaurus

Siamosaurus (meaning "Siamese lizard") is a genus of theropod dinosaur from Early Cretaceous Thailand.

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Siamosuchus

Siamosuchus is a genus of goniopholidid mesoeucrocodylian.

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Siamotyrannus

Siamotyrannus (meaning "Siamese Tyrant") is a genus of carnivorous theropod dinosaur from the early Cretaceous of Thailand.

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Sichuanosuchus

Sichuanosuchus is an extinct genus of crocodylomorph from the Late Jurassic and possibly Early Cretaceous of China.

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Sierra de las Quijadas National Park

The Sierra de las Quijadas National Park (Parque Nacional Sierra de las Quijadas) is a national park located in the northwestern part of the Argentine province of San Luis.

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Siluosaurus

Siluosaurus (meaning "Silu (Chinese for Silk Road, referring to the discovery location) lizard") is a genus of ornithopod dinosaur from the Barremian-Albian-age Lower Cretaceous Xinminbao Group of Gansu, China.

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Simbirskiasaurus

Simbirskiasaurus is an extinct genus of Ichthyosaur from the Early Cretaceous (early Barremian) of Ulyanovsk Province, Russia.

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Similicaudipteryx

Similicaudipteryx, meaning "similar to Caudipteryx" (which itself means "tail feather"), is a genus of theropod dinosaur of the family Caudipteridae.

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Simoedosaurus

Simoedosaurus is an extinct reptile known from the Paleocene of North America, Europe and western Asia, and a member of the Choristodera, a group of aquatic reptiles that lived in the Northern Hemisphere from the Jurassic to the early Cenozoic.

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Simosuchus

Simosuchus (meaning "pug-nosed crocodile" in Greek, referring to the animal's blunt snout) is an extinct genus of notosuchian crocodylomorphs from the Late Cretaceous of Madagascar.

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Sinaeschnidia

Sinaeschnidia (meaning "Chinese Aeschnidium") is a genus of prehistoric dragonfly.

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Sinemys

Sinemys is an extinct genus of turtle from the Late Jurassic to Early Cretaceous of China and Japan.

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Sinobaatar

Sinobaatar is a genus of extinct mammal from the Lower Cretaceous of China.

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Sinocalliopteryx

Sinocalliopteryx (meaning 'Chinese beautiful feather') is a genus of carnivorous compsognathid theropod dinosaurs from the Lower Cretaceous Yixian Formation of China (Jianshangou Beds, dating to 124.6 Ma).

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Sinodelphys

Sinodelphys is an extinct mammal from the Early Cretaceous.

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Sinopliosaurus

Sinopliosaurus is a genus of pliosauroid plesiosaur, a type of short-necked marine reptile, from the Early Cretaceous of People's Republic of China.

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Sinopterus

Sinopterus (meaning "Chinese wing") was a genus of tapejarid pterodactyloid pterosaur from the Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China.

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Sinornis

Sinornis is a genus of enantiornithean birds from the Lower Cretaceous Jiufotang Formation of the People's Republic of China.

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Sinornithoides

Sinornithoides (meaning "Chinese bird form") is a genus of troodontid theropod dinosaurs containing the single species Sinornithoides youngi.

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Sinornithosaurus

Sinornithosaurus (derived from a combination of Latin and Greek, meaning 'Chinese bird-lizard') is a genus of feathered dromaeosaurid dinosaur from the early Cretaceous Period (early Aptian) of the Yixian Formation in what is now China.

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Sinosauropteryx

Sinosauropteryx (meaning "Chinese reptilian wing") is a compsognathid dinosaur.

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Sinotyrannus

Sinotyrannus (meaning "Chinese tyrant") is a genus of large basal proceratosaurid dinosaur, a relative of tyrannosaurids which flourished in North America and Asia during the Jurassic and early Cretaceous periods.

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Sinovenator

Sinovenator (meaning "Chinese hunter") is a genus of troodontid dinosaur from China.

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Sinovenatorinae

Sinovenatorinae is a subfamily of the extinct bird-like troodontid dinosaurs known exclusively from the Early Cretaceous of China.

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Sinusonasus

Sinusonasus is a genus of dinosaurs from the Early Cretaceous Period, recovered from the Yixian Formation.

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Sirindhorna

Sirindhorna is an extinct genus of hadrosauroid ornithopod dinosaur from Early Cretaceous deposits of northeastern Thailand.

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Siroccopteryx

Siroccopteryx is an extinct genus of pterodactyloid pterosaur, known from middle Cretaceous (between the Albian and Cenomanian stages, about 105 million years ago) sediments in Morocco.

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Sirte Basin

The Sirte Basin is a late Mesozoic and Cenozoic triple junction continental rift (extensional basin) along northern Africa that was initiated during the late Jurassic Period.

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Sisteronia

Sisteronia is an extinct genus of platypterygiine ophthalmosaurid ichthyosaur known from the 'middle' Cretaceous of southeastern England and southeastern France.

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Socotá

Socotá is a town and municipality in the Valderrama Province, part of the Colombian department of Boyacá.

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Songlingornis

Songlingornis is a prehistoric bird genus from the Early Cretaceous.

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Songlingornithidae

Songlingornithidae is a family of early ornithuromorph birds from the early Cretaceous Period of China.

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Soriatitan

Soriatitan ("Soria titan") is a genus of brachiosaurid sauropod from the Early Cretaceous of Spain.

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South Polar region of the Cretaceous

The South Polar region of the Cretaceous featured the polar forests of the Cretaceous, 145–66 mya, while the continent of Australia was still linked to Antarctica to form East Gondwana, a product of the break-up of Gondwana and its splitting from Africa, drifting southward.

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South Region (Cameroon)

The South Region (Région du Sud) is located in the southwestern and south-central portion of the Republic of Cameroon.

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Southborough Pit

Southborough Pit is a geological Site of Special Scientific Interest in Tunbridge Wells in Kent.

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Spalacotheriidae

Spalacotheriidae is a family of extinct mammals belonging to the group Symmetrodonta.

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Species of Allosaurus

There have been a number of potential species assigned to the carnosaurian, allosauroidean dinosaur genus Allosaurus since its description in 1877 by Othniel Charles Marsh, but only a handful are still regarded as valid.

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Sphenobaiera

Sphenobaiera is a plant that lived in the Late Cretaceous period.

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Spider web

A spider web, spiderweb, spider's web, or cobweb (from the archaic word coppe, meaning "spider") is a device created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey.

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Spinolestes

Spinolestes is an extinct mammal genus from the Early Cretaceous of Spain.

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Spinosauridae

Spinosauridae (meaning 'spined lizards') is a family of megalosauroidean theropod dinosaurs.

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Spinosaurus

Spinosaurus (meaning "spine lizard") is a genus of theropod dinosaur that lived in what now is North Africa, during the upper Albian to upper Turonian stages of the Cretaceous period, about 112 to 93.5 million years ago.

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Spinostropheus

Spinostropheus is a genus of small carnivorous ceratosaurian theropod dinosaur that lived in the Middle Jurassic period of Niger.

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SPS 100/44

SPS 100/44 is the accession number given to a fossil of an unnamed genus of troodontid dinosaur discovered in Mongolia.

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Stegopelta

Stegopelta (meaning "roofed shield") is a genus of armored dinosaur.

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Stegosauria

Stegosauria is a group of herbivorous ornithischian dinosaurs that lived during the Jurassic and early Cretaceous periods.

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Stegosauridae

Stegosauridae is a clade of thyreophoran dinosaurs (armoured dinosaurs) within the suborder Stegosauria.

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Stegosaurides

Stegosaurides (meaning "Stegosaurus-shaped") is a genus of herbivorous thyreophoran (perhaps ankylosaurid or possibly stegosaurian) dinosaur.

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Stegosaurus

Stegosaurus, from Greek stegos (στέγος) which means roof and sauros (σαῦρος) which means lizard (Στεγόσαυρος), is a genus of herbivorous thyreophoran dinosaur.

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Stemmatodus

Stemmatodus is an extinct genus of prehistoric ray-finned fish that lived during the Early Cretaceous epoch.

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Stenopelix

Stenopelix (meaning "narrow pelvis") is a genus of small ornithischian dinosaur from the Early Cretaceous of Germany.

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Stenophlebiidae

The Stenophlebiidae is an extinct family of medium-sized to large fossil odonates from the Upper Jurassic and Lower Cretaceous period that belongs to the damsel-dragonfly grade ("anisozygopteres") within the stem group of Anisoptera.

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Stenorhynchosaurus

Stenorhynchosaurus is an extinct genus of pliosaurid plesiosaurs which lived in South America during the Early Cretaceous.

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Stephanidae

The Stephanidae, sometimes called crown wasps, are a family of parasitoid wasps placed in the superfamily Stephanoidea, which has at least 345 living species in 11 genera.

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Stereospondyli

The Stereospondyli are a group of extinct temnospondyl amphibians.

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Steropodon

Steropodon galmani was a prehistoric species of monotreme, or egg-laying mammal, that lived about 105 million years ago (mya) in the Lower Cretaceous period.

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Steropodontidae

The Steropodontidae was a possible family of monotremes that are known from fossils from the Early Cretaceous in Australia.

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Stolokrosuchus

Stolokrosuchus is an extinct genus of neosuchian crocodylomorph that lived during the Early Cretaceous.

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Stomiiformes

Stomiiformes is an order of deep-sea ray-finned fishes of very diverse morphology.

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Stone SSSI, Buckinghamshire

Stone SSSI is a 0.12 hectare geological Site of Special Scientific Interest in Stone in Buckinghamshire.

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Stoycho Vassilev Breskovski

Stoycho Vassilev Breskovski (Стойчо Василев Бресковски) (December 25, 1934, Granit, Stara Zagora Province, Bulgaria – January 15, 2004, Sofia, Bulgaria) was a Bulgarian paleontologist.

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Strážov Mountains

The Strážov Mountains (Strážovské vrchy) are a mountain range in northwestern Slovakia, being part of Inner Western Carpathians, and of the Fatra-Tatra Area.

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Suchomimus

Suchomimus (meaning 'crocodile mimic') is a genus of large theropod dinosaur with a crocodile-like skull that lived between 125–112 million years ago,Holtz, Thomas R. Jr.

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Suchosaurus

Suchosaurus (meaning "crocodile lizard") is a spinosaurid theropod dinosaur from Cretaceous England, originally believed to be a genus of crocodile.

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Sugiyamasaurus

"Sugiyamasaurus" (meaning "Sugiyama lizard") is the informal name given to a few spatulate teeth belonging to a titanosauriform, possibly Fukuititan, which lived in Japan during the Early Cretaceous.

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Suisun Valley AVA

The Suisun Valley AVA is an American Viticultural Area in Solano County, California, located just east of the Napa Valley wine region in the Coast Range.

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Sulcavis

Sulcavis is a genus of enantiornithine bird.

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Sundays River Formation

The Sundays River Formation is a geological formation found in the Eastern and Western Cape provinces in South Africa.

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Sunnyodon

Sunnyodon is a genus of tiny, extinct mammal, probably of the Lower Cretaceous.

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Sunosuchus

Sunosuchus is an extinct genus of goniopholidid mesoeucrocodylian.

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Susisuchus

Susisuchus is an extinct genus of neosuchian mesoeucrocodylian crocodyliform from the Early Cretaceous of Brazil.

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Suzhousaurus

Suzhousaurus is a genus of herbivorous therizinosauroid theropod dinosaur from the Early Cretaceous-age Xinminpu Group of the Yujingzi Basin, Gansu, China.

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Sveltonectes

Sveltonectes is an extinct genus of platypterygiine ophthalmosaurid ichthyosaurs known from Ul’yanovsk region, western Russia.

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Symmetrodonta

Symmetrodonta is a group of Mesozoic mammals and mammal-like synapsids characterized by the triangular aspect of the molars when viewed from above and the absence of a well-developed talonid.

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Symmoriida

Symmoriida is an extinct order of ratfish that contains three families.

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Synodus intermedius

Synodus intermedius, (common sand diver), at NCBI at FishBase is a species of fish in the lizardfish family, Synodontidae, a basal ray-finned fish in the class Actinopterygii.

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Taganga

Taganga is a traditional fishing village and corregimiento of Santa Marta, located on the Caribbean coast of Colombia at about 10 minutes or north of Santa Marta.

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Tagarosuchus

Tagarosuchus is an extinct genus of Early Cretaceous protosuchian-grade crocodyliform.

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Tahora Formation

The Tahora Formation is a Late Cretaceous geologic formation that outcrops in northeastern New Zealand near Gisborne.

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Tambatitanis

Tambatitanis is an extinct genus of titanosauriform dinosaur from the Early Cretaceous (Albian) of Japan.

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Tangvayosaurus

Tangvayosaurus (meaning "Tang Vay lizard") is a genus of sauropod dinosaur from the Aptian-Albian age Lower Cretaceous Grès Supérior Formation of Savannakhet, Laos.

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Taohelong

Taohelong is a genus of nodosaurid dinosaur known from Lower Cretaceous rocks in north-central China.

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Tapejaridae

Tapejaridae (meaning "the old beings") are a family of pterodactyloid pterosaurs from the Cretaceous period.

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Tapejaromorpha

Tapejaromorpha is a group of pterosaurs within the suborder Pterodactyloidea.

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Tapuiasaurus

Tapuiasaurus (meaning "Tapuia lizard") is a genus of titanosaur which lived during the Lower Cretaceous period (Aptian age) in what is now Minas Gerais, Brazil.

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Tarsophlebiidae

The Tarsophlebiidae is an extinct family of medium-sized fossil odonates from the Upper Jurassic and Lower Cretaceous period of Eurasia.

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Tastavinsaurus

Tastavinsaurus is a genus of sauropod dinosaur belonging to the Titanosauriformes.

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Tatankacephalus

Tatankacephalus is a basal genus of nodosaurid dinosaur that lived during the Early Cretaceous.

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Tataouinea

Tataouinea is a genus of sauropod dinosaur (with a single species, Tataouinea hannibalis) in the subfamily Rebbachisaurinae of Rebbachisauridae which lived in the Early Cretaceous Tunisia.

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Taxonomy of Liliaceae

The taxonomy of Liliaceae has had a complex history since the first description of this flowering plant family in the mid-eighteenth century.

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Tchoiria

Tchoiria is a genus of simoedosaurid choristodere, a type of crocodile-like aquatic reptile.

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Teffont Evias Quarry and Lane Cutting

Teffont Evias Quarry and Lane Cutting is a 3.6 hectare geological Site of Special Scientific Interest at Teffont Evias in Wiltshire, England, notified in 1989.

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Teinolophos

Teinolophos trusleri was a prehistoric species of monotreme, or egg-laying mammal.

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Teleosauridae

The teleosaurids were marine crocodyliforms similar to the modern gharial that lived from the Early Jurassic to the Early Cretaceous.

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Temnospondyli

Temnospondyli (from Greek τέμνειν (temnein, "to cut") and σπόνδυλος (spondylos, "vertebra")) is a diverse subclass of extinct small to giant tetrapods—often considered primitive amphibians—that flourished worldwide during the Carboniferous, Permian, and Triassic periods.

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Tendaguru Formation

The Tendaguru Formation, or Tendaguru Beds are a fossil-rich formation in Tanzania.

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Tengrisaurus

Tengrisaurus (meaning "Tengri lizard") is a genus of lithostrotian sauropod, from the Early Cretaceous (Barremian-Aptian), of the Murtoi Formation, Russia.

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Tenontosaurus

Tenontosaurus (meaning "sinew lizard") is a genus of medium- to large-sized ornithopod dinosaur.

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Tera Beds

The Tera Beds is a geological formation in Burgos, Spain whose strata date back to the Early Cretaceous.

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Terlingua, Texas

Terlingua is a mining district and census-designated place (CDP) in southwestern Brewster County, Texas, United States.

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Tethys Ocean

The Tethys Ocean (Ancient Greek: Τηθύς), Tethys Sea or Neotethys was an ocean during much of the Mesozoic Era located between the ancient continents of Gondwana and Laurasia, before the opening of the Indian and Atlantic oceans during the Cretaceous Period.

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Tetragramma donaldtrumpi

Tetragramma donaldtrumpi is a species of fossil sea urchins discovered and identified by William R. Thompson, Jr.

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Tetraodontiformes

The Tetraodontiformes are an order of highly derived ray-finned fish, also called the Plectognathi.

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Tetrapodophis

Tetrapodophis (meaning "four-footed snake" in Greek) is an extinct genus of snake from the Early Cretaceous of Brazil.

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Texasetes

Texasetes (meaning "Texas resident") is a genus of ankylosaurian dinosaur from the late Lower Cretaceous of North America.

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Thalassodromeus

Thalassodromeus is a genus of large pterodactyloid pterosaur found in northeastern Brazil.

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Thalassodromidae

Thalassodromidae (meaning "sea runners", due to previous misconceptions of skimming behaviour; they are now thought to be terrestrial predators) is a family of pterodactyloid pterosaurs from the early Cretaceous period of Brazil.

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Tharrhias

Tharrhias is an extinct genus of prehistoric bony fish that lived during the Aptian stage of the Early Cretaceous epoch.

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Thecocoelurus

Thecocoelurus is a dubious genus of theropod dinosaur from the early Cretaceous period of England.

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Thecospondylus

Thecospondylus (THEEK-o-SPON-di-lus, "sheath vertebra") is a dubious genus of dinosaur from the Early Cretaceous of England Dr.

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Theiophytalia

Theiophytalia is a genus of herbivorous iguanodontian dinosaur from the lower Cretaceous period (Aptian-Albian stage, about 112 million years ago) of Colorado, USA.

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Therapsid

Therapsida is a group of synapsids that includes mammals and their ancestors.

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Theriosuchus

Theriosuchus is an extinct genus of atoposaurid mesoeucrocodylian from Late Jurassic to Early Cretaceous of Europe (southern England) and Southeast Asia (Thailand), with fragmentary records from Middle Jurassic and Early Cretaceous sites in China, Morocco, and Scotland.

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Therizinosaur

Therizinosaurs (or segnosaurs) were theropod dinosaurs belonging to the clade Therizinosauria.

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Therochelonia

Therochelonia is a group of dicynodont therapsids.

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Therosaurus

Therosaurus is a genus of ornithopod dinosaurs containing the single species Therosaurus anglicus, previously known as Iguanodon anglicus.

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Thescelosaurinae

Thescelosaurinae is a subfamily of ornithischian dinosaurs from the Early Cretaceous of Asia and the Late Cretaceous of North America.

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Thiaridae

Thiaridae, common name thiarids, is a family of tropical freshwater snails with an operculum, aquatic gastropod mollusks in the superfamily Cerithioidea.

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Thoraciliacus

Thoraciliacus rostriceps is an extinct species of frog from the Cretaceous period and the only species of the genus Thoraciliacus, which is classified in the unranked clade Pipimorpha.

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Thrips

Thrips (order Thysanoptera) are minute (most are 1 mm long or less), slender insects with fringed wings and unique asymmetrical mouthparts.

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Tianyuraptor

Tianyuraptor is a genus of short-armed dromaeosaurid dinosaur ('running lizard'; a type of small dinosaur considered to be closely related to birds) that lived during the Early Cretaceous, about 122 million years ago.

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Tiaojishan Formation

The Tiaojishan Formation is a geological formation in Hebei and Liaoning, People's Republic of China, dating to the middle-late Jurassic period (Bathonian-Oxfordian stages).

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Time range of Hexanchiformes species

The shark order Hexanchiformes (in a broad sense, not only comprising the cow sharks, but also including the frilled sharks, Chlamydoselachidae) is often considered the most primitive of extant sharks, since they share some features with Paleozoic and early-Mesozoic shark groups as the Cladoselachiformes.

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Timeline of ankylosaur research

This timeline of ankylosaur research is a chronological listing of events in the history of paleontology focused on the ankylosaurs, quadrupedal herbivorous dinosaurs who were protected by a covering bony plates and spikes and sometimes by a clubbed tail.

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Timeline of egg fossil research

This timeline of egg fossils research is a chronologically ordered list of important discoveries, controversies of interpretation, taxonomic revisions, and cultural portrayals of egg fossils.

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Timeline of pachycephalosaur research

This timeline of pachycephalosaur research is a chronological listing of events in the history of paleontology focused on the pachycephalosaurs, a group of dome-skulled herbivorous marginocephalian dinosaurs.

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Timeline of pterosaur research

This timeline of pterosaur research is a chronologically ordered list of important fossil discoveries, controversies of interpretation, and taxonomic revisions of pterosaurs, the famed flying reptiles of the Mesozoic era.

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Timeline of stegosaur research

This timeline of stegosaur research is a chronological listing of events in the history of paleontology focused on the stegosaurs, the iconic plate-backed, spike-tailed herbivorous eurypod dinosaurs that predominated during the Jurassic period.

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Timeline of the development of tectonophysics (after 1952)

The evolution of tectonophysics is closely linked to the history of the continental drift and plate tectonics hypotheses.

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Timimus

Timimus is a genus of small coelurosaurian theropod dinosaur from the Early Cretaceous of Australia.

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Tiouraren Formation

The Tiouraren Formation is a geological formation in Niger whose strata were originally thought to be Early Cretaceous.

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Tlayúa Formation

The Tlayúa Formation is an Early Cretaceous (late Albian) geological formation near Tepexi de Rodríguez, Puebla.

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TNM 02067

TNM 02067 (Tanzanian National Museums specimen 02067) is a fragmentary fossil dentary (lower jaw) from the Cretaceous (between 146 and 66 million years ago) of Tanzania.

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Toolebuc Formation

The Toolebuc Formation is a geological formation that extends from Queensland across South Australia and the Northern Territory in Australia, whose strata date back to the Albian stage of the Early Cretaceous.

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Toxolophosaurus

Toxolophosaurus was a Sphenodontid from the Early Cretaceous-age Kootenai Formation of Montana.

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Trachodon

Trachodon (meaning "rough tooth") is a dubious genus of hadrosaurid dinosaur based on teeth from the Campanian-age Upper Cretaceous Judith River Formation of Montana, U.S.Leidy, J. (1856).

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Trematochampsidae

Trematochampsidae is an extinct family of mesoeucrocodylian crocodylomorphs.

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Tremp Formation

The Tremp Formation (Formación Tremp, Formació de Tremp), also described as Tremp Group (Grupo Tremp), is a geological formation in the comarca Pallars Jussà, Lleida, Spain.

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Tribosphenida

Tribosphenida is a group (infralegion) of mammals that includes the ancestor of Hypomylos, Aegialodontia and Theria (the last common ancestor of marsupials and placentals plus all of its descendants).

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Triconodon

Triconodon ("three coned tooth") is a genus of extinct mammal from the Early Cretaceous of Europe.

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Trimucrodon

Trimucrodon (meaning "three-pointed tooth") is a genus of herbivorous dinosaur from the Late Jurassic or Early Cretaceous of what is now Portugal.

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Trinidad

Trinidad is the larger and more populous of the two major islands of Trinidad and Tobago.

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Trinity Group (geologic formation)

The Trinity Group is a group (sequence of rock strata) in the Lower Cretaceous lithostratigraphy of Texas, Arkansas, Mississippi, New Mexico, Louisiana and Oklahoma.

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Tristel Formation

The Tristel Formation is a stratigraphic formation deposited between the upper Barremian and the lower Aptian (Lower Cretaceous).

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Tritylodontidae

Tritylodontidae ("three-knob teeth", named after the shape of animal's teeth) is an extinct family of small to medium-sized, highly specialized mammal-like cynodonts, bearing several mammalian traits like erect limbs, endothermy and details of the skeleton.

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Triunfosaurus

Triunfosaurus (meaning "Triunfo Basin reptile") is a genus of somphospondylan sauropod dinosaur from the Early Cretaceous of Brazil.

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Tsagaantsav Svita

The Tsagaantsav Svita is an Early Cretaceous (Berriasian to Valanginian) geologic formation.

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Tuchengzi Formation

The Tuchengzi Formation is a geological formation in China whose strata spans the Tithonian (Late Jurassic) to Berriasian (Early Cretaceous) ages.

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Tugulu Group

The Tugulu Group is a geological formation in Xinjiang, China whose strata date back to the Early Cretaceous.

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Tugulusaurus

Tugulusaurus (meaning "Tugulu lizard") is a valid genus of theropod dinosaur from early Cretaceous Tugulu Group in the Urhe area of the People's Republic of China.

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Tujingzi Formation

The Tujingzi Formation is a geological formation in Hebei, China whose strata date back to the Early Cretaceous.

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Tunbridge Wells Sand Formation

The Tunbridge Wells Sand Formation is a geological unit which forms part of the Wealden Group and the uppermost and youngest part of the unofficial Hastings Beds.

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Tupandactylus

Tupandactylus (meaning "Tupan finger", in reference to the Tupi thunder god) is a genus of tapejarid pterodactyloid pterosaur from the Early Cretaceous Crato Formation of Brazil.

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Tupuxuara

Tupuxuara is a genus of large, crested, toothless pterodactyloid pterosaur.

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Turginskaya Svita

The Turginskaya Svita is an Early Cretaceous geologic formation.

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Turiasauria

Turiasauria is an unranked clade of primitive sauropod dinosaurs known from Middle Jurassic to Early Cretaceous deposits in Europe and North America.

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Twin Mountains Formation

The Twin Mountains Formation, also known as the Twin Mountain Formation, is a sedimentary rock formation, within the Trinity Group, found in Texas of the United States of America.

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Tylocidaris

Tylocidaris is an extinct genus of echinoids that lived from the Early Cretaceous to the Eocene.

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Tyrannosauroidea

Tyrannosauroidea (meaning 'tyrant lizard forms') is a superfamily (or clade) of coelurosaurian theropod dinosaurs that includes the family Tyrannosauridae as well as more basal relatives.

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Tyrannotitan

Tyrannotitan (meaning "titanic tyrant") is a genus of huge bipedal carnivorous dinosaur of the carcharodontosaurid family from the Aptian stage of the early Cretaceous period, discovered in Argentina.

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Uhligites

Uhligites is an oppeliid ammonite included in the subfamily Streblitinae that lived during the latest part of the Jurassic and earliest Cretaceous; from about 150 to 140 m.y.a. Uhligites has been found in uppermost Jurassic (Tithonian) sediments in China, India, New Zealand, and Yemen, and the Lower Cretaceous (Berriasian) sediments, also in Yemen, and in Antarctica.

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Uktenadactylus

Uktenadactylus is a genus of pterodactyloid pterosaurs from the Lower Cretaceous Paw Paw Formation of Texas.

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Ultrasaurus

Ultrasaurus is a genus of sauropod dinosaur discovered by Haang Mook Kim in South Korea.

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Umoonasaurus

Umoonasaurus is an extinct genus of plesiosaur belonging to the family Leptocleididae.

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Unasuchus

Unasuchus is an extinct genus of Early Cretaceous eusuchian belonging to the family Hylaeochampsidae.

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Undopterix

Undopterix is an extinct genus of moths within the family Eolepidopterigidae, containing two species.

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Unwindia

Unwindia is a genus of pterodactyloid pterosaur from the Early Cretaceous of Brazil.

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Urbion Group

The Urbion Group is a geological formation in Burgos, Spain whose strata date back to the Early Cretaceous.

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Uruguaysuchidae

Uruguaysuchidae is a family of notosuchian crocodyliforms that lived in South America and Africa during the Cretaceous period.

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Utahraptor

Utahraptor (meaning "Utah's predator" or "Utah's thief") is a genus of theropod dinosaurs.

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Utsira High

Utsira High is a basement high and horst in the southwest of the Norwegian continental shelf.

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Vaca Muerta

Vaca Muerta (in Spanish Dead Cow) is a geologic formation of Jurassic and Cretaceous age, located at Neuquén Basin in Argentina.

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Valanginian

In the geologic timescale, the Valanginian is an age or stage of the Early or Lower Cretaceous.

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Valdoraptor

Valdoraptor (meaning "Wealden plunderer") is a genus of theropod dinosaur from the Early Cretaceous.

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Valdosaurus

Valdosaurus ("Weald Lizard") is a genus of bipedal herbivorous iguanodont ornithopod dinosaur found on the Isle of Wight and elsewhere in England.

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Valdotriton

Valdotriton is a genus of extinct prehistoric salamanders.

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Vale of Kent

The Vale of Kent, located in Kent, England, is the name given to the broad clay vale between the Greensand Ridge and the High Weald.

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Valles Pasiegos

Valles Pasiegos is an administrative comarca in Cantabria, Spain.

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Vanilla (genus)

Vanilla, the vanilla orchids, forms a flowering plant genus of about 110 species in the orchid family (Orchidaceae).

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Varanoidea

Varanoidea is a superfamily of lizards, including the well-known family Varanidae (the monitors or goanna).

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Vargeão Dome

Vargeão Dome is a meteorite crater in Santa Catarina State, Brazil, straddling the municipalities of Vargeão, Faxinal dos Guedes, and Passos Maia.

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Vectidraco

Vectidraco (meaning "dragon from the Isle of Wight"), is a genus of azhdarchoid pterosaur from the Lower Cretaceous of England.

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Vectis Formation

The Vectis Formation is a geological formation on the Isle of Wight, England whose strata date back to the Early Cretaceous (lowermost Aptian stage, 125 million years ago).

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Vectisuchus

Vectisuchus is a genus of goniopholidid mesoeucrocodylian, known from the Early Cretaceous-age Wealden Group of the Isle of Wight, England.

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Vectocleidus

Vectocleidus is an extinct genus of leptocleidid plesiosaurian known from the Early Cretaceous Vectis Formation (late Barremian stage) of Isle of Wight, in the United Kingdom.

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Velociraptorinae

Velociraptorinae is a subfamily of the theropod group Dromaeosauridae.

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Venenosaurus

Venenosaurus was a sauropod dinosaur, named after the Poison Strip Member of the Cedar Mountain Formation in Utah, United States, where the fossils were discovered by a Denver Museum of Natural History volunteer Tony DiCroce in 1998.

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Vescornis

Vescornis is a genus of enantiornithine bird.

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Vesperopterylus

Vesperopterylus (meaning "dusk wing") is a genus of anurognathid pterosaur from the Early Cretaceous of China, the geologically youngest member of its group.

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Vianí Fault

The Vianí Fault (Falla de Vianí) is a dextral oblique thrust fault in the department of Cundinamarca in central Colombia.

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Victalimulus

Victalimulus is an extinct genus of xiphosuran, or horseshoe crab, from Early Cretaceous beds in Koonwarra in eastern Victoria, Australia.

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Vincelestes

Vincelestes ("Vince's thief") is an extinct genus of actively mobile mammal, that lived in what would be South America during the Early Cretaceous from 130—112 mya, existing for approximately.

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Vinctifer

Vinctifer is an extinct genus of prehistoric bony fish.

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Volcanology of Canada

Volcanology of Canada includes lava flows, lava plateaus, lava domes, cinder cones, stratovolcanoes, shield volcanoes, submarine volcanoes, calderas, diatremes, and maars, along with examples of more less common volcanic forms such as tuyas and subglacial mounds.

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Volcanology of Eastern Canada

The volcanology of Eastern Canada includes the hundreds of volcanic areas and extensive lava formations in Eastern Canada.

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Wadhurst Clay Formation

The Wadhurst Clay Formation is a geological unit which forms part of the Wealden Group and the middle part of the now unofficial Hastings Beds.

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Wakinosaurus

Wakinosaurus (meaning "Wakino lizard") is a genus of theropod dinosaur from the Early Cretaceous (Hauterivian-Barremian) Sengoku Formation of Kyushu, Japan.

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Walgettosuchus

Walgettosuchus (meaning "Walgett crocodile") is currently thought to be an invalid genus of theropod dinosaur.

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Walking with Dinosaurs

Walking with Dinosaurs is a six-part documentary television miniseries created by Tim Haines and produced by BBC Natural History Unit.

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Walking with...

The Walking with... series (also known as the Trilogy of Life or Walking with Prehistoric Life series) is a collection of shows that are produced by the BBC and are made by Impossible Pictures.

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Wallowa Mountains

The Wallowa Mountains are a mountain range located in the Columbia Plateau of northeastern Oregon in the United States.

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Wallumbilla Formation

The Wallumbilla Formation is a Lower Cretaceous geologic formation found in Australia.

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Wannchampsus

Wannchampsus ("Wann Langston, Jr.'s crocodile") is an extinct genus of paralligatorid neosuchian, close to but not a true crocodilian.

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Wapuskanectes

Wapuskanectes is an extinct genus of elasmosaurid known from the Alberta of Canada.

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Wasp

A wasp is any insect of the order Hymenoptera and suborder Apocrita that is neither a bee nor an ant.

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Wattenberg Gas Field

The Wattenberg Gas Field is a large producing area of natural gas and condensate in the Denver Basin of central Colorado, USA.

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Way Group

Way Group (Grupo Way) is a geologic group of Lower Cretaceous age located in northern Chile.

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Wayan Formation

The Wayan Formation is a geological formation in Idaho whose strata date back to the latest Early Cretaceous and the earliest Late Cretaceous.

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Weald

The Weald is an area of South East England between the parallel chalk escarpments of the North and the South Downs.

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Weald–Artois Anticline

The Weald–Artois anticline is a large anticline, a geological structure running between the regions of the Weald in southern England and Artois in northeastern France.

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Wealden Group

The Wealden Group is a group (a sequence of rock strata) in the lithostratigraphy of southern England.

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Wealdenbatrachus

Wealdenbatrachus is an extinct genus of prehistoric frog known from Uña, Spain.

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Weberian apparatus

The Weberian apparatus is an anatomical structure that connects the swim bladder to the auditory system in fishes belonging to the superorder Ostariophysi.

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Weichselia

Weichselia is an extinct genus of fern in the family Matoniaceae.

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Welwitschiaceae

Welwitschiaceae is a family of plants of the order Gnetales with one living species, Welwitschia mirabilis, found in southwestern Africa.

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Wesserpeton

Wesserpeton is an extinct genus of albanerpetontid amphibian known from the Isle of Wight, southern England.

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Wessex Formation

The Wessex Formation is a fossil-rich English geological formation that dates from the Berriasian to Barremian stages (about 145–125 million years ago) of the Early Cretaceous.

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West Sussex

West Sussex is a county in the south of England, bordering East Sussex (with Brighton and Hove) to the east, Hampshire to the west and Surrey to the north, and to the south the English Channel.

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Western Weald

The western Weald is an area of undulating countryside in Hampshire and West Sussex containing a mixture of woodland and heathland areas.

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Westmount Summit

Westmount Summit is the summit of one of the three peaks of Mount Royal (along with Mount Royal proper and Outremont) located in Westmount, Quebec, Canada.

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Whistler Mountain

Whistler Mountain is a mountain in the Fitzsimmons Range of the Pacific Ranges of the Coast Mountains, located on the northwestern edge of Garibaldi Provincial Park.

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Winton, Queensland

Winton is a town and locality in the Shire of Winton in Central West Queensland, Australia.

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Wintonotitan

Wintonotitan (meaning "Winton titan") is a genus of titanosauriform dinosaur from late Albian (Early Cretaceous)-age rocks of Australia.

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Wollemia

Wollemia is a genus of coniferous tree in the family Araucariaceae.

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Wonthaggi Formation

The Wonthaggi Formation is a geological formation in Victoria, Australia whose strata date back to the Early Cretaceous.

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Woolmer Forest

Woolmer Forest is a royal hunting forest.

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Woolungasaurus

Woolungasaurus glendowerensis ('Glendower's Woolunga lizard', named after an Aboriginal mythical reptile, Persson 1960) is a plesiosaur, an extinct marine reptile, belonging to the Elasmosauridae.

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Wuerhosaurus

Wuerhosaurus is a genus of stegosaurid dinosaur from the Early Cretaceous Period of China and Mongolia.

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Wyleyia

Wyleyia is a prehistoric bird genus with a single species, Wyleyia valdensis, known from the early Cretaceous period of England.

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Xenocretosuchus

Xenocretosuchus is an extinct genus of tritylodont therapsids from the Aptian (Early Cretaceous) of Siberia, in the Russian Federation.

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Xenoposeidon

Xenoposeidon (meaning "strange or alien Poseidon", in allusion to Sauroposeidon) is a possibly dubious genus of sauropod dinosaur from the Early Cretaceous of England, living about 140 million years ago.

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Xiagou Formation

The Xiagou Formation is the middle strata of the Xinminpu Group.

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Xianglong

Xianglong (meaning "flying dragon" in Chinese) is a genus of Cretaceous lizard discovered in the Zhuanchengzi, near Yizhou, Yixian, Liaoning Province of China.

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Xiangornis

Xiangornis is an enantiornithine bird from the Lower Cretaceous of Western Liaoning, China.

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Xianshanosaurus

Xianshanosaurus is a genus of sauropod dinosaur from the Early Cretaceous (Aptian-Albian) of the Ruyang Basin in Henan Province, China.

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Xinghaiornis

Xinghaiornis is an extinct genus of toothless basal ornithothoracine dinosaur known from the Early Cretaceous Yixian Formation (Aptian stage) of western Liaoning Province, northeastern China.

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Xingning Basin

Xingning Basin, located in Xingning, China, is the largest basin in east Guangdong province.

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Xinjiangovenator

Xinjiangovenator (meaning "Xinjiang hunter") is a genus of coelurosaurian dinosaur of the Valanginian to Albian stages of the Early Cretaceous period.

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Xinminbao Group

The Xīnmínbǎo Group is a group of geological formations in north central China.

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Xinpongnaobao Formation

The Xinpongnaobao Formation is a geological formation in Inner Mongolia, China whose strata date back to the Early Cretaceous.

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Xiongguanlong

Xiongguanlong ("Grand Pass dragon") is a genus of tyrannosauroid dinosaur that lived in the Early Cretaceous of what is now China.

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Xuwulong

Xuwulong is a genus of hadrosauroid dinosaur from the Early Cretaceous period.

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Yabeinosaurus

Yabeinosaurus is an extinct genus of lizard from the Early Cretaceous Jehol Group of northeastern China.

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Yamaceratops

Yamaceratops is a genus of dinosaur from the Late Cretaceous.

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Yanoconodon

Yanoconodon is a monotypic genus of extinct early mammal whose representative species Yanoconodon allini lived during the Mesozoic in what is now China.

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Yanornis

Yanornis (Chinese: 燕鸟) is an extinct genus of fish-eating Early Cretaceous birds.

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Yanornithiformes

Yanornithiformes is an order of ornithuromorph birds from the early Cretaceous Period of China.

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Yavanna chimaerica

Yavanna is an extinct genus of tree ferns known from the Early Cretaceous of what are now the South Shetland Islands, Antarctica.

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Yaverlandia

Yaverlandia is a genus of theropod dinosaur.

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Yaverlestes

Yaverlestes gassoni is an extinct mammal which dates to the early Cretaceous period, 130 million years ago.

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Yijinholuo Formation

The Yijinholuo Formation is a geological formation in Inner Mongolia, China whose strata date back to the Early Cretaceous.

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Yinotheria

Yinotheria is a proposed basal mammalian subclass clade that contains a few fossils of the Mesozoic and the extant monotremes.

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Yixian Formation

The Yixian Formation is a geological formation in Jinzhou, Liaoning, People's Republic of China, that spans 11 million years during the early Cretaceous period.

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Yixianornis

Yixianornis (meaning "Yixian Formation bird") is a bird genus from the early Cretaceous period.

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Yixianosaurus

Yixianosaurus (meaning "Yixian lizard") is a maniraptoran theropod dinosaur genus from the Early Cretaceous of China.

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Yongjiacaris

Yongjiacaris zhejiangensis is an extinct species of shrimp, and the only species in the genus Yongjiacaris.

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Yongjinglong

Yongjinglong is an extinct genus of herbivorous derived titanosaur sauropod dinosaur known from the Early Cretaceous of Lanzhou-Minhe Basin of Gansu Province, China.

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Yueosaurus

Yueosaurus is an extinct genus of basal ornithopod dinosaur known from Zhejiang Province, China.

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Yukon-Tanana Terrane

The Yukon-Tanana Terrane (YTT) is a tectonic terrane that extends from central Alaska through central Yukon and into northern British Columbia, Canada and Southeast Alaska, USA.

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Yumenornis

Yumenornis is an extinct genus of basal ornithuromorph dinosaur known from the Early Cretaceous Xiagou Formation of Changma Basin, Gansu Province of northwestern China.

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Yunganglong

Yunganglong is an extinct genus of basal hadrosauroid dinosaur known from the early Late Cretaceous lower Zhumapu Formation of Zuoyun County, Shanxi Province of northeastern China.

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Yunmenglong

Yunmenglong is an extinct genus of somphospondylan sauropod known from the late Early Cretaceous of Henan Province, central China.

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Yurgovuchia

Yurgovuchia is an extinct genus of dromaeosaurid theropod dinosaur known from the Early Cretaceous (probably Barremian stage) of Utah.

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Yutyrannus

Yutyrannus (meaning "feathered tyrant") is a genus of tyrannosauroid dinosaurs which contains a single known species, Yutyrannus huali.

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Zapalasaurus

Zapalasaurus is a genus of dinosaur described by Leonardo Salgado, Ismar de Souza Carvalho and Alberto C. It was named after the city of Zapala.

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Zapata Formation

Zapata Formation (Formación Zapata) is a sedimentary formation of Lower Cretaceous age.

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Zarqa River

The Zarqa River (نهر الزرقاء, Nahr az-Zarqāʾ, lit. "the River of the Blue City") is the second largest tributary of the lower Jordan River, after the Yarmouk River.

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Zaza Formation

The Zaza Formation is a palaeontological formation located in Buryatia (Russia).

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Zeiformes

The Zeiformes are a small order of marine ray-finned fishes most notable for the dories, a group of common food fish.

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Zephyrosaurus

Zephyrosaurus (meaning "westward wind lizard") is a genus of orodromin ornithopod dinosaur.

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Zhangheotherium

Zhangheotherium is a genus of symmetrodont, an extinct order of mammals.

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Zhenyuanlong

Zhenyuanlong (meaning "Zhenyuan's dragon", from Chinese Pinyin 龙 lóng "dragon") is a genus of dromaeosaurid dinosaur from the Yixian Formation of Liaoning, China.

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Zhenyuanopterus

Zhenyuanopterus is a genus of pterosaur which is known from Lower Cretaceous (early Aptian) Yixian Formation of Liaoning, China.

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Zhidan Group

The Zhidan Group is a geological formation in China whose strata date back to the Early Cretaceous.

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Zhongjianornis

Zhongjianornis is a genus of beaked, pigeon-sized birds from the early Cretaceous period of China.

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Zhongjianosaurus

Zhongjianosaurus is a genus of dromaeosaurid belonging to the Microraptoria.

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Zhongornis

Zhongornis (meaning "intermediate bird"Li, D.; Sulliven, C.; Zhou, Z; Zhang, Z. (2010). "Basal birds from China: a brief review." Chinese Birds, 1(2): 83-96) is a genus of primitive avialan that lived during the Early Cretaceous.

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Zhouornis

Zhouornis is an extinct genus of enantiornithine dinosaur known from the Early Cretaceous Jehol Group (Aptian stage) of western Liaoning Province, northeastern China.

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Zingiberales

The Zingiberales are flowering plants forming one of four orders in the commelinids clade of monocots, together with its sister order, Commelinales.

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Zoneait

Zoneait (pronounced "zone-eight" and meaning "large tooth" in the Kiowa language) is an extinct genus of thalattosuchian crocodylomorph known from a single species, Zoneait nargorum, from the Middle Jurassic of Oregon.

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100 Million BC

100 Million BC is a 2008 direct-to-DVD action film directed by Griff Furst and distributed by film studio The Asylum.

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1830 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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1833 in paleontology

Category:1830s in paleontology Paleontology.

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1901 in paleontology

Data coutersy of George Olshevsky's dinosaur genera list.

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1904 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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1969 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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1969 Yangjiang earthquake

The 1969 Yangjiang earthquake occurred on 26 July, at 6:49 am, Beijing local time (25 July 22:49 UTC).

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1970 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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1971 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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1973 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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1982 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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1984 in paleontology

Willi Ziegler and Charles A. Sandberg described the conodont genus Alternognathus.

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1986 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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1989 in paleontology

German paleontologist and stratigrapher Heinz Walter Kozur (1942-2013) described the conodont genus Mesogondolella.

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1992 in paleontology

No description.

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1993 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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1994 in paleontology

No description.

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1995 in paleontology

No description.

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1996 in paleontology

No description.

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1997 in paleontology

No description.

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1999 in paleontology

No description.

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2000 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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2001 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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2002 in paleontology

Willi Ziegler IA Bardashev and K Weddige described the conodont genus Eolinguipolygnathus.

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2003 in paleontology

German paleontologist and stratigrapher Heinz Walter Kozur (1942-2013) described the conodont genus Carnepigondolella.

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2004 in paleontology

Data courtesy of George Olshevsky's dinosaur genera list.

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2005 in paleontology

No description.

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2006 in paleontology

No description.

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2007 in paleontology

No description.

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2008 in paleontology

No description.

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2009 in archosaur paleontology

The year 2009 in Archosaur paleontology was eventful.

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2010 in archosaur paleontology

The year 2010 in Archosaur paleontology was eventful.

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2010 in arthropod paleontology

This list of fossil arthropods described in 2010 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that have been described during the year 2010.

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2011 in archosaur paleontology

The year 2011 in Archosaur paleontology was eventful.

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2011 in arthropod paleontology

This list of fossil arthropods described in 2012 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that have been described during the year 2012.

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2012 in archosaur paleontology

The year 2012 in Archosaur paleontology was eventful.

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2012 in arthropod paleontology

This list of fossil arthropods described in 2012 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that have been described during the year 2012.

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2012 in fish paleontology

This list of fossil fish species is a list of taxa of fish that have been described during the year 2012.

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2012 in paleontology

Note: In 2012 International Code of Zoological Nomenclature was amended, with new regulations allowing the publication of new names and nomenclatural acts in zoology after 2011 in works "produced in an edition containing simultaneously obtainable copies by a method that assures (...) widely accessible electronic copies with fixed content and layout", provided that the work is registered in ZooBank before it is published, the work itself states the date of publication with evidence that registration has occurred, and the ZooBank registration states both the name of an electronic archive intended to preserve the work and the ISSN or ISBN associated with the work.

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2013 in archosaur paleontology

The year 2013 in Archosaur paleontology was eventful.

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2013 in paleomalacology

This list, 2013 in molluscan paleontology, is a list of new taxa of ammonites and other fossil cephalopods, as well as fossil gastropods, bivalves and other molluscs that have been described during the year 2013.

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2013 in paleontology

No description.

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2014 in paleontology

No description.

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2016 in arthropod paleontology

This list of fossil arthropods described in 2016 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that have been described during the year 2016, as well as other significant discoveries and events related to arthropod paleontology that occurred in the year 2016.

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2016 in fish paleontology

This list of fossil fishes described in 2016 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fishes, bony fishes and other fishes of every kind that have been described during the year 2016, as well as other significant discoveries and events related to paleontology of fishes that occurred in the year 2016.

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2016 in molluscan paleontology

This list, 2016 in molluscan paleontology, is a list of new taxa of ammonites and other fossil cephalopods, as well as fossil gastropods, bivalves and other molluscs that have been described during the year 2016.

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2016 in paleontology

No description.

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2017 in archosaur paleontology

The year 2017 in archosaur paleontology was eventful.

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2017 in arthropod paleontology

This list of fossil arthropods described in 2017 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that are scheduled to be described during the year 2017, as well as other significant discoveries and events related to arthropod paleontology that are scheduled to occur in the year 2017.

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2017 in mammal paleontology

This article records new taxa of fossil mammals of every kind that have been described during the year 2017, as well as other significant discoveries and events related to paleontology of mammals that occurred in the year 2017.

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2017 in paleobotany

This article records new taxa of plants that are scheduled to be described during the year 2017, as well as other significant discoveries and events related to paleobotany that are scheduled to occur in the year 2017.

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2017 in paleoichthyology

This list of fossil fishes described in 2017 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fishes, bony fishes and other fishes of every kind that are scheduled to be described during the year 2017, as well as other significant discoveries and events related to paleontology of fishes that are scheduled to occur in the year 2017.

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2017 in paleomalacology

This list, 2017 in paleomalacology, is a list of new taxa of ammonites and other fossil cephalopods, as well as fossil gastropods, bivalves and other molluscs that are scheduled to be described during the year 2017, as well as other significant discoveries and events related to molluscan paleontology that are scheduled to occur in the year 2017.

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2017 in paleontology

No description.

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2018 in arthropod paleontology

This list of fossil arthropods described in 2018 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every kind that were described during the year 2018, as well as other significant discoveries and events related to arthropod paleontology that are scheduled to occur in the year 2018.

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2018 in mammal paleontology

This article records new taxa of fossil mammals of every kind are scheduled to be described during the year 2018, as well as other significant discoveries and events related to paleontology of mammals that are scheduled to occur in the year 2018.

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2018 in paleobotany

This article records new taxa of plants that are scheduled to be described during the year 2018, as well as other significant discoveries and events related to paleobotany that are scheduled to occur in the year 2018.

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2018 in paleoichthyology

This list of fossil fish described in 2018 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fish, bony fish and other fish of every kind that are scheduled to be described during the year 2018, as well as other significant discoveries and events related to paleontology of fish that are scheduled to occur in the year 2018.

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2018 in paleomalacology

This list, 2018 in paleomalacology, is a list of new taxa of ammonites and other fossil cephalopods, as well as fossil gastropods, bivalves and other molluscs that are scheduled to be described during the year 2018, as well as other significant discoveries and events related to molluscan paleontology that are scheduled to occur in the year 2018.

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2018 in paleontology

No description.

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20th century in ichnology

The 20th century in ichnology refers to advances made between the years 1900 and 1999 in the scientific study of trace fossils, the preserved record of the behavior and physiological processes of ancient life forms, especially fossil footprints.

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Redirects here:

Early Cretaceous epoch, Early Cretaceous period, Lower Cretaceous, Lower Cretaceous Epoch, Lower Cretaceous period, The Early Cretaceous.

References

[1] https://en.wikipedia.org/wiki/Early_Cretaceous