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Index Triassic

The Triassic is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.9 million years ago (Mya), to the beginning of the Jurassic Period Mya. [1]

185 relations: Aetosaur, Ammonoidea, Amphibian, Anisian, Archosaur, Archosauromorpha, Argentina, Askeptosaurus, Avemetatarsalia, Basal (phylogenetics), Basal metabolic rate, Bømlo, Bennettitales, Bolide, Brachiopod, Branchiosauridae, Brasilitherium, Brasilodon, Brazil, Cambridge University Press, Canada, Capitosauria, Carboniferous, Carnian, Carnian Pluvial Event, Caturrita Formation, Central Atlantic magmatic province, Cephalopod, Cesare Emiliani, China, Chroniosuchia, Clade, Coelophysis, Conodont, Continental climate, Coral, Crocodilia, Crurotarsi, Cycad, Cynodont, Cynognathus, Devonian, Dicynodont, Dinosaur, Early Triassic, Ecteniniidae, Embolomeri, Epoch (geology), Europe, Evaporite, ..., Evolution of mammals, Exhumation (geology), Extinction event, Food web, Friedrich August von Alberti, Frog, Gastropoda, Geologic time scale, Geological period, Germany, Ginkgo, Ginkgoales, Glacier, Glossopteridales, Glossopteris, Gondwana, Gondwana Research, Herbivore, Ichthyosaur, Illite, Induan, Insectivore, Italy, Jurassic, Kannemeyeria, Ladinian, Lagerstätte, Lagoon, Lake Lugano, Late Triassic, Laurasia, Lepidosauromorpha, Limestone, Lissamphibia, List of fossil sites, Lycopodiophyta, Lystrosaurus, Macrocnemus, Mammal, Mammaliaformes, Manicouagan Reservoir, Mastodonsaurus, Mesozoic, Metoposauridae, Microconchida, Micropholis (amphibian), Middle Triassic, Mollusca, Monsoon, Monte San Giorgio, Morocco, Mudstone, Neusticosaurus, New Jersey, Newark Supergroup, Norian, North America, Norwegian Journal of Geology, Nothosaur, Ocean, Olenekian, Ornithischia, Pachypleurosaur, Paleo-Tethys Ocean, Pangaea, Panthalassa, Peneplain, Permian, Permian–Triassic extinction event, Petrified Forest National Park, Phylloceratina, Phytosaur, Pinophyta, Pioneer organism, Placodont, Plateosaurus, Plesiosauria, Postosuchus, Precambrian Research, Procolophonidae, Proganochelys, Proterosuchus, Protorosauria, Pteridospermatophyta, Pterosaur, Quebec, Rauisuchia, Red beds, Reef, Reptiliomorpha, Rhaetian, Rhynchocephalia, Rhynchosaur, Rift, Rio Grande do Sul, Sandstone, Santa Maria Formation, Saurichthys, Sauropodomorpha, Sauropterygia, Science (journal), Serpulidae, Solnhofen Limestone, Spermatophyte, Sphenosuchia, Stage (stratigraphy), Staurikosaurus, Stereospondyli, Strandflat, Stratigraphy, Subduction, Summit accordance, Supercontinent, Svalbard, Switzerland, Synapsid, System (stratigraphy), Tanystropheus, Temnospondyli, Temperate climate, Tethys Ocean, Thabanchuia, Thalattosaur, Thecodontia, Therapsid, Theropoda, Ticinosuchus, Traversodontidae, Trematosauria, Triassic–Jurassic extinction event, Tupilakosaurus, Turtle, Volcano, Western Europe, Year. Expand index (135 more) »


Aetosaurs (aetosaur; order name Aetosauria; from Greek, ἀετός (aetos, "eagle") and σαυρος (sauros, "lizard")) are an extinct order of heavily armoured, medium- to large-sized Late Triassic herbivorous archosaurs.

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Ammonoids are an extinct group of marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda.

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Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia.

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In the geologic timescale, the Anisian is the lower stage or earliest age of the Middle Triassic series or epoch and lasted from million years ago until million years ago.

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Archosaurs are a group of diapsid amniotes whose living representatives consist of birds and crocodilians.

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Archosauromorpha (Greek for "ruling lizard forms") is a clade (or infraclass) of diapsid reptiles that first appeared during the middle Permian and became more common during the Triassic.

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Argentina, officially the Argentine Republic (República Argentina), is a federal republic located mostly in the southern half of South America.

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Askeptosaurus is an extinct genus of the prehistoric marine reptile order thalattosauria.

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Avemetatarsalia (meaning "bird metatarsals") is a clade name established by British palaeontologist Michael Benton in 1999 for all crown group archosaurs that are closer to birds than to crocodiles.

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Basal (phylogenetics)

In phylogenetics, basal is the direction of the base (or root) of a rooted phylogenetic tree or cladogram.

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Basal metabolic rate

Basal metabolic rate (BMR) is the rate of energy expenditure per unit time by endothermic animals at rest.

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Bømlo is a municipality in the southern part of Hordaland county, Norway.

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Bennettitales (also known as cycadeoids) is an extinct order of seed plants that first appeared in the Triassic period and became extinct in most areas toward the end of the Cretaceous (i.e. they existed around 252 to 66 million years ago), although some Bennettitales appear to have survived into Oligocene times in Tasmania and eastern Australia.

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A bolide (French via Latin from the Greek βολίς bolís, "missile") is an extremely bright meteor, especially one that explodes in the atmosphere.

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Brachiopods, phylum Brachiopoda, are a group of lophotrochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs.

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Branchiosauridae is an extinct family of temnospondyl amphibians.

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Brasilitherium ("Brazilian beast") is an extinct genus of cynodonts that lived during the Middle to Late Triassic in what is now Brazil.

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Brasilodon ("Brazil tooth") is an extinct genus of cynodonts that lived during the Norian age of the Late Triassic Period, about 228 to 208.5 million years ago.

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Brazil (Brasil), officially the Federative Republic of Brazil (República Federativa do Brasil), is the largest country in both South America and Latin America.

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Cambridge University Press

Cambridge University Press (CUP) is the publishing business of the University of Cambridge.

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Canada is a country located in the northern part of North America.

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Capitosauria is an extinct group of large temnospondyl amphibians with simplified stereospondyl vertebrae.

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The Carboniferous is a geologic period and system that spans 60 million years from the end of the Devonian Period million years ago (Mya), to the beginning of the Permian Period, Mya.

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The Carnian (less commonly, Karnian) is the lowermost stage of the Upper Triassic series (or earliest age of the Late Triassic epoch).

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Carnian Pluvial Event

The Carnian Pluvial Event (CPE) is a major global climate change and biotic turnover that occurred during the Carnian, early Late Triassic, ~ 230 million years ago.

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Caturrita Formation

The Caturrita Formation is a rock formation found in Rio Grande do Sul, Brazil.

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Central Atlantic magmatic province

The Central Atlantic magmatic province (CAMP) is the Earth's largest continental large igneous province, covering an area of roughly 11 million km2.

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A cephalopod is any member of the molluscan class Cephalopoda (Greek plural κεφαλόποδα, kephalópoda; "head-feet") such as a squid, octopus or nautilus.

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Cesare Emiliani

Cesare Emiliani (8 December 1922 – 20 July 1995) was an Italian-American scientist, geologist, micropaleontologist, and the founder of paleoceanography, developing the timescale of marine isotope stages, which despite modifications remains in use today.

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China, officially the People's Republic of China (PRC), is a unitary one-party sovereign state in East Asia and the world's most populous country, with a population of around /1e9 round 3 billion.

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Chroniosuchia is a group of tetrapods that lived from the Middle Permian to Late Triassic in what is now Eastern Europe, Kyrgyzstan, China and Germany.

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A clade (from κλάδος, klados, "branch"), also known as monophyletic group, is a group of organisms that consists of a common ancestor and all its lineal descendants, and represents a single "branch" on the "tree of life".

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Coelophysis is an extinct genus of coelophysid theropod dinosaur that lived approximately 203 to 196 million years ago during the latter part of the Triassic Period in what is now the southwestern United States and also in South Africa and Zimbabwe.

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Conodonts (Greek kōnos, "cone", + odont, "tooth") are extinct agnathan chordates resembling eels, classified in the class Conodonta.

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Continental climate

Continental climates are defined in the Köppen climate classification as having the coldest month with the temperature never rising above 0.0° C (32°F) all month long.

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Corals are marine invertebrates in the class Anthozoa of phylum Cnidaria.

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Crocodilia (or Crocodylia) is an order of mostly large, predatory, semiaquatic archosaurian reptiles, known as crocodilians.

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Crurotarsi is a group of archosauriform reptiles that includes the archosaurs (represented today by birds and crocodilians) and the extinct, crocodile-like phytosaurs.

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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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The cynodonts ("dog teeth") (clade Cynodontia) are therapsids that first appeared in the Late Permian (approximately 260 Ma).

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Cynognathus is an extinct genus of large-bodied cynodont therapsids that lived in the Middle Triassic.

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The Devonian is a geologic period and system of the Paleozoic, spanning 60 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya.

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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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Dinosaurs are a diverse group of reptiles of the clade Dinosauria.

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Early Triassic

The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale.

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Ecteniniidae is an extinct family of probainognathian cynodonts from the Triassic of South America.

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Embolomeri is a suborder of Reptiliomorpha.

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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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Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere.

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Evaporite is the term for a water-soluble mineral sediment that results from concentration and crystallization by evaporation from an aqueous solution.

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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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Exhumation (geology)

In geology, the term exhumation refers to the process by which a parcel of rock approaches Earth's surface.

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Extinction event

An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the biodiversity on Earth.

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Food web

A food web (or food cycle) is a natural interconnection of food chains and a graphical representation (usually an image) of what-eats-what in an ecological community.

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Friedrich August von Alberti

Friedrich August von Alberti (September 4, 1795 – September 12, 1878) was a German geologist whose ground-breaking 1834 publication recognized the unity of the three characteristic strata that compose the sedimentary deposits of the Triassic period in Northern Europe.

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A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (Ancient Greek ἀν-, without + οὐρά, tail).

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The gastropods, more commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca, called Gastropoda.

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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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Geological period

A geological period is one of several subdivisions of geologic time enabling cross-referencing of rocks and geologic events from place to place.

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Germany (Deutschland), officially the Federal Republic of Germany (Bundesrepublik Deutschland), is a sovereign state in central-western Europe.

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

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Ginkgoales or Ginkgophyte is a gymnosperm order containing only one extant species: Ginkgo biloba, the ginkgo tree.

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A glacier is a persistent body of dense ice that is constantly moving under its own weight; it forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often centuries.

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Glossopteridales is an extinct order of plants belonging to Pteridospermatophyta, or seed ferns, also known as Arberiales and Ottokariales.

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Glossopteris (γλώσσα glossa, meaning "tongue", because the leaves were tongue-shaped, and pteris, Greek for fern or feathery) is the largest and best-known genus of the extinct order of seed ferns known as Glossopteridales (also known as Arberiales or Ottokariales).

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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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Gondwana Research

Gondwana Research is a peer-reviewed scientific journal with an "all earth science" scope and an emphasis on the origin and evolution of continents.

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A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage, for the main component of its diet.

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

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Illite is a group of closely related non-expanding clay minerals.

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The Induan is, in the geologic timescale, the first age of the Early Triassic epoch or the lowest stage of the Lower Triassic series.

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robber fly eating a hoverfly An insectivore is a carnivorous plant or animal that eats insects.

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Italy (Italia), officially the Italian Republic (Repubblica Italiana), is a sovereign state in Europe.

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The Jurassic (from Jura Mountains) was a geologic period and system that spanned 56 million years from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period Mya.

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Kannemeyeria was a large dicynodont of the family Kannemeyeriidae, one of the first representatives of the family, and hence one of the first large herbivores of the Triassic.

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The Ladinian is a stage and age in the Middle Triassic series or epoch.

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A Lagerstätte (from Lager 'storage, lair' Stätte 'place'; plural Lagerstätten) is a sedimentary deposit that exhibits extraordinary fossils with exceptional preservation—sometimes including preserved soft tissues.

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A lagoon is a shallow body of water separated from a larger body of water by barrier islands or reefs.

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Lake Lugano

Lake Lugano (Lago di Lugano or Ceresio, from Ceresius lacus; Luganersee) is a glacial lake which is situated on the border between southern Switzerland and northern Italy.

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Late Triassic

The Late Triassic is the third and final of three epochs of the Triassic Period in the geologic timescale.

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Laurasia was the more northern of two supercontinents (the other being Gondwana) that formed part of the Pangaea supercontinent around (Mya).

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Lepidosauromorpha is a group of reptiles comprising all diapsids closer to lizards than to archosaurs (which include crocodiles and birds).

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Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs.

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The Lissamphibia are a group of tetrapods that includes all modern amphibians.

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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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The Division Lycopodiophyta (sometimes called lycophyta or lycopods) is a tracheophyte subgroup of the Kingdom Plantae.

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Lystrosaurus ("shovel lizard") was a herbivorous genus of Late Permian and Early Triassic Period dicynodont therapsids, which lived around 250 million years ago in what is now Antarctica, India, and South Africa.

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Macrocnemus is an extinct genus of archosauromorph reptile known from the Middle Triassic (Late Anisian to Ladinian) of Europe and China.

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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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Mammaliaformes ("mammal-shaped") is a clade that contains the crown group mammals and their closest extinct relatives; the group radiated from earlier probainognathian cynodonts.

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Manicouagan Reservoir

Manicouagan Reservoir (also Lake Manicouagan) is an annular lake in central Quebec, Canada, covering an area of.

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Mastodonsaurus (meaning "breast tooth lizard") is an extinct genus of temnospondyl amphibian from the Middle Triassic.

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The Mesozoic Era is an interval of geological time from about.

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Metoposauridae is an extinct family of trematosaurian temnospondyls.

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The order Microconchida is a group of small, spirally-coiled, encrusting fossil "worm" tubes from the class Tentaculita found from the Upper Ordovician to the Middle Jurassic (Bathonian) around the world.

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Micropholis (amphibian)

Micropholis (Greek 'mikros'.

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Middle Triassic

In the geologic timescale, the Middle Triassic is the second of three epochs of the Triassic period or the middle of three series in which the Triassic system is divided.

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Mollusca is a large phylum of invertebrate animals whose members are known as molluscs or mollusksThe formerly dominant spelling mollusk is still used in the U.S. — see the reasons given in Gary Rosenberg's.

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Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea.

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Monte San Giorgio

Monte San Giorgio is a wooded mountain (1,097 m above sea level) of the Lugano Prealps, overlooking Lake Lugano in Switzerland.

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Morocco (officially known as the Kingdom of Morocco, is a unitary sovereign state located in the Maghreb region of North Africa. It is one of the native homelands of the indigenous Berber people. Geographically, Morocco is characterised by a rugged mountainous interior, large tracts of desert and a lengthy coastline along the Atlantic Ocean and Mediterranean Sea. Morocco has a population of over 33.8 million and an area of. Its capital is Rabat, and the largest city is Casablanca. Other major cities include Marrakesh, Tangier, Salé, Fes, Meknes and Oujda. A historically prominent regional power, Morocco has a history of independence not shared by its neighbours. Since the foundation of the first Moroccan state by Idris I in 788 AD, the country has been ruled by a series of independent dynasties, reaching its zenith under the Almoravid dynasty and Almohad dynasty, spanning parts of Iberia and northwestern Africa. The Marinid and Saadi dynasties continued the struggle against foreign domination, and Morocco remained the only North African country to avoid Ottoman occupation. The Alaouite dynasty, the current ruling dynasty, seized power in 1631. In 1912, Morocco was divided into French and Spanish protectorates, with an international zone in Tangier, and regained its independence in 1956. Moroccan culture is a blend of Berber, Arab, West African and European influences. Morocco claims the non-self-governing territory of Western Sahara, formerly Spanish Sahara, as its Southern Provinces. After Spain agreed to decolonise the territory to Morocco and Mauritania in 1975, a guerrilla war arose with local forces. Mauritania relinquished its claim in 1979, and the war lasted until a cease-fire in 1991. Morocco currently occupies two thirds of the territory, and peace processes have thus far failed to break the political deadlock. Morocco is a constitutional monarchy with an elected parliament. The King of Morocco holds vast executive and legislative powers, especially over the military, foreign policy and religious affairs. Executive power is exercised by the government, while legislative power is vested in both the government and the two chambers of parliament, the Assembly of Representatives and the Assembly of Councillors. The king can issue decrees called dahirs, which have the force of law. He can also dissolve the parliament after consulting the Prime Minister and the president of the constitutional court. Morocco's predominant religion is Islam, and the official languages are Arabic and Berber, with Berber being the native language of Morocco before the Arab conquest in the 600s AD. The Moroccan dialect of Arabic, referred to as Darija, and French are also widely spoken. Morocco is a member of the Arab League, the Union for the Mediterranean and the African Union. It has the fifth largest economy of Africa.

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Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds.

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Neusticosaurus (sometimes misspelled Neuticosaurus) ("swimming lizard"), is an extinct genus of marine reptile belonging to the nothosaur order, from Italy, Switzerland and Germany.

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New Jersey

New Jersey is a state in the Mid-Atlantic region of the Northeastern United States.

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Newark Supergroup

The Newark Supergroup, also known as the Newark Group, is an assemblage of Upper Triassic and Lower Jurassic sedimentary rocks which outcrop intermittently along the United States East Coast.

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The Norian is a division of the Triassic geological period.

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North America

North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere; it is also considered by some to be a northern subcontinent of the Americas.

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Norwegian Journal of Geology

Norwegian Journal of Geology (Norsk Geologisk Tidsskrift) is a quarterly peer-reviewed scientific journal published by the Norwegian Geological Society.

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Nothosaurs (order Nothosauroidea) were Triassic marine sauropterygian reptiles that may have lived like seals of today, catching food in water but coming ashore on rocks and beaches.

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An ocean (the sea of classical antiquity) is a body of saline water that composes much of a planet's hydrosphere.

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In the geologic timescale, the Olenekian is an age in the Early Triassic epoch or a stage in the Lower Triassic series.

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Ornithischia is an extinct clade of mainly herbivorous dinosaurs characterized by a pelvic structure similar to that of birds.

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''Pachypleurosaurus'' Pachypleurosaurs were primitive sauropterygian reptiles that vaguely resembled aquatic lizards, and were limited to the Triassic period.

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Paleo-Tethys Ocean

The Paleo-Tethys or Palaeo-Tethys Ocean was an ocean located along the northern margin of the paleocontinent Gondwana that started to open during the Middle Cambrian, grew throughout the Paleozoic, and finally closed during the Late Triassic; existing for about 400 million years.

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Pangaea or Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras.

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Panthalassa, also known as the Panthalassic or Panthalassan Ocean, (from Greek πᾶν "all" and θάλασσα "sea"), was the superocean that surrounded the supercontinent Pangaea.

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In geomorphology and geology a peneplain is a low-relief plain formed by protracted erosion.

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The Permian is a geologic period and system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic period 251.902 Mya.

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Permian–Triassic extinction event

The Permian–Triassic (P–Tr or P–T) extinction event, colloquially known as the Great Dying, the End-Permian Extinction or the Great Permian Extinction, occurred about 252 Ma (million years) ago, forming the boundary between the Permian and Triassic geologic periods, as well as the Paleozoic and Mesozoic eras.

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Petrified Forest National Park

Petrified Forest National Park is a United States national park in Navajo and Apache counties in northeastern Arizona.

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The Phyllocertina comprise a suborder of ammonoid cephalopods, belonging to the Ammonitida, whose range extends from the Lower Triassic to the Upper Cretaceous.

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Phytosaurs are an extinct group of large, mostly semiaquatic Late Triassic archosauriform reptiles.

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The Pinophyta, also known as Coniferophyta or Coniferae, or commonly as conifers, are a division of vascular land plants containing a single extant class, Pinopsida.

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Pioneer organism

A pioneer organism—also called a disaster taxon—is an organism that populates a region after a (short-term) natural disaster, mass extinction, or any other event that kills off most life in that area.

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Placodonts ("Tablet teeth") is an extinct order of marine reptiles that lived during the Triassic period, becoming extinct at the end of the period.

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Plateosaurus (probably meaning "broad lizard", often mistranslated as "flat lizard") is a genus of plateosaurid dinosaur that lived during the Late Triassic period, around 214 to 204 million years ago, in what is now Central and Northern Europe.

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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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Postosuchus, meaning "Crocodile from Post", is an extinct genus of rauisuchid reptiles comprising two species, P. kirkpatricki and P. alisonae, that lived in what is now North America during the Late Triassic.

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Precambrian Research

Precambrian Research is a peer-reviewed scientific journal covering the geology of the Earth and its planetary neighbors.

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Procolophonidae is an extinct family of parareptiles from the Permian and Triassic periods.

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Proganochelys quenstedti, identified as a primitive turtle, is an extinct genus that has been hypothesized to be the sister taxon to all other turtles creating a monophyletic group, the Casichelydia.

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Proterosuchus is an extinct genus of Early Triassic archosauriform reptiles.

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Protorosauria is an extinct, possibly polyphyletic, group of archosauromorph reptiles from the latest Permian (Changhsingian stage) to the early Late Triassic (Carnian stage) of Asia, Europe, North America.

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The term Pteridospermatophyta (or "seed ferns" or "Pteridospermatopsida") refers to several distinct groups of extinct seed-bearing plants (spermatophytes).

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Pterosaurs (from the Greek πτερόσαυρος,, meaning "winged lizard") were flying reptiles of the extinct clade or order Pterosauria.

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Quebec (Québec)According to the Canadian government, Québec (with the acute accent) is the official name in French and Quebec (without the accent) is the province's official name in English; the name is.

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"Rauisuchia" is a group of mostly large (often) Triassic archosaurs.

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Red beds

Red beds (or redbeds) are sedimentary rocks, which typically consist of sandstone, siltstone, and shale that are predominantly red in color due to the presence of ferric oxides.

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A reef is a bar of rock, sand, coral or similar material, lying beneath the surface of water.

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Reptiliomorpha is a clade containing the amniotes and those tetrapods that share a more recent common ancestor with amniotes than with living amphibians (lissamphibians).

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The Rhaetian is, in geochronology, the latest age of the Triassic period or in chronostratigraphy the uppermost stage of the Triassic system.

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Rhynchocephalia is an order of lizard-like reptiles that includes only one living species of tuatara, which in turn has two subspecies (Sphenodon punctatus punctatus and Sphenodon punctatus guntheri), which only inhabit parts of New Zealand.

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Rhynchosaurs were a group of Triassic diapsid reptiles related to the archosaurs.

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In geology, a rift is a linear zone where the lithosphere is being pulled apart and is an example of extensional tectonics.

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Rio Grande do Sul

Rio Grande do Sul (lit. Great Southern River) is a state located in the southern region of Brazil.

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Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) mineral particles or rock fragments.

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Santa Maria Formation

The Santa Maria Formation is a sedimentary rock formation found in Rio Grande do Sul, Brazil.

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Saurichthys ('lizard fish') is an extinct genus of ray-finned fish from the Triassic period.

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Sauropodomorpha (from Greek, meaning "lizard-footed forms") is an extinct clade of long-necked, herbivorous, saurischian dinosaurs that includes the sauropods and their ancestral relatives.

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Sauropterygia ("lizard flippers") is an extinct, diverse taxon of aquatic reptiles that developed from terrestrial ancestors soon after the end-Permian extinction and flourished during the Mesozoic before they became extinct at the end of that era.

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Science (journal)

Science, also widely referred to as Science Magazine, is the peer-reviewed academic journal of the American Association for the Advancement of Science (AAAS) and one of the world's top academic journals.

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The Serpulidae are a family of sessile, tube-building annelid worms in the class Polychaeta.

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Solnhofen Limestone

The Solnhofen Plattenkalk, or Solnhofen Limestone, is a Jurassic Konservat-Lagerstätte that preserves a rare assemblage of fossilized organisms, including highly detailed imprints of soft bodied organisms such as sea jellies.

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The spermatophytes, also known as phanerogams or phenogamae, comprise those plants that produce seeds, hence the alternative name seed plants.

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Sphenosuchia is a suborder of basal crocodylomorphs that first appeared in the Triassic and occurred into the Middle Jurassic.

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Stage (stratigraphy)

In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition.

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Staurikosaurus (Pronounced "STORE-ee-koh-SAWR-us", "Southern Cross lizard") is a genus of herrerasaurid dinosaur from the Late Triassic of Brazil, found in the Santa Maria Formation of Paleorrota Geopark.

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The Stereospondyli are a group of extinct temnospondyl amphibians.

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Strandflat (strandflate) is a landform typical of the Norwegian coast consisting of a flattish erosion surface on the coast and near-coast seabed.

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Stratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering (stratification).

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Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced or sinks due to gravity into the mantle.

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Summit accordance

Altai region of Russia. A summit accordance exists when hill and mountaintops tops, and eventually also plateaux, have such disposition that they form a geometric plane that may be either horizontal or tilted.

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In geology, a supercontinent is the assembly of most or all of Earth's continental blocks or cratons to form a single large landmass.

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Svalbard (prior to 1925 known by its Dutch name Spitsbergen, still the name of its largest island) is a Norwegian archipelago in the Arctic Ocean.

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Switzerland, officially the Swiss Confederation, is a sovereign state in Europe.

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Synapsids (Greek, 'fused arch'), synonymous with theropsids (Greek, 'beast-face'), are a group of animals that includes mammals and every animal more closely related to mammals than to other living amniotes.

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System (stratigraphy)

A system in stratigraphy is a unit of rock layers that were laid down together within the same corresponding geological period.

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Tanystropheus (Greek τανυ~ “long” + στροφευς “hinged”), was a 6-metre (20 ft) long reptile that dated from the Middle Triassic period.

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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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Temperate climate

In geography, the temperate or tepid climates of Earth occur in the middle latitudes, which span between the tropics and the polar regions of Earth.

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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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Thabanchuia is an extinct genus of dvinosaurian temnospondyl within the family Tupilakosauridae.

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Thalattosaurs (meaning "ocean lizards") are a group of prehistoric marine reptiles that lived during the mid-late Triassic Period.

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Thecodontia (meaning "socket-teeth"), now considered an obsolete taxonomic grouping, was formerly used to describe a diverse "order" of early archosaurian reptiles that first appeared in the latest Permian period and flourished until the end of the Triassic period.

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Therapsida is a group of synapsids that includes mammals and their ancestors.

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Theropoda (or, from Greek θηρίον "wild beast" and πούς, ποδός "foot") or theropods are a dinosaur suborder characterized by hollow bones and three-toed limbs.

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Ticinosuchus is an extinct genus of pseudosuchian archosaur from the Middle Triassic (Anisian - Ladinian) of Switzerland and Italy.

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Traversodontidae is a family of herbivorous cynodonts.

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Trematosauria is one of two major groups of temnospondyl amphibians that survived the Permian-Triassic extinction event, the other (according to Yates and Warren 2000) being the Capitosauria.

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Triassic–Jurassic extinction event

The Triassic–Jurassic extinction event marks the boundary between the Triassic and Jurassic periods,, and is one of the major extinction events of the Phanerozoic eon, profoundly affecting life on land and in the oceans.

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Tupilakosaurus is an extinct genus of dvinosaurian temnospondyl within the family Tupilakosauridae.

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Turtles are diapsids of the order Testudines (or Chelonii) characterized by a special bony or cartilaginous shell developed from their ribs and acting as a shield.

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A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.

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Western Europe

Western Europe is the region comprising the western part of Europe.

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A year is the orbital period of the Earth moving in its orbit around the Sun.

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Redirects here:

The Triassic Era, Trias era, Triassic (geology), Triassic Era, Triassic Period, Triassic System, Triassic era, Triassic period.


[1] https://en.wikipedia.org/wiki/Triassic

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