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171 relations: Abelisaur, Acrocanthosaurus, Alfred Romer, Allosauridae, Allosauroidea, Allosaurus, Alvarezsauridae, Alvarezsauroidea, Anatomical terms of motion, Anchiornis, Anchisaurus, Ancient Greek, Archaeopterygidae, Archaeopteryx, Argentina, Associated Press, Asymmetry, Averostra, Avetheropoda, Avialae, Barnum Brown, Basal (phylogenetics), BBC, Beak, Bee hummingbird, Bipedalism, Bird, Carcharodontosaurus, Carnian, Carnivore, Carnosauria, Carnotaurus, Ceratosauria, Ceratosaurus, Clade, Cladistics, Cleveland Museum of Natural History, Coelophysis, Coelophysis bauri, Coelophysoidea, Coelurosauria, Common ostrich, Compsognathidae, Compsognathus, Confuciusornithidae, Convergent evolution, Cretaceous, Cretaceous–Paleogene extinction event, Daemonosaurus, David B. Norman, ..., Deinocheirus, Deinonychus, Denticle (tooth feature), Dilophosauridae, Dilophosaurus, Dinosaur, Dinosaur classification, Dromaeosauridae, Dromaeosaurus, Early Jurassic, Edward Drinker Cope, Egg, Egg incubation, Enantiornithes, Endocranium, Eodromaeus, Eoraptor, Euornithes, Evolution of birds, Family (biology), Feather, Feathered dinosaur, Feitianshan Formation, Femur, Friedrich von Huene, Furcula, Gastrolith, Genus, Geological period, Giganotosaurus, Gondwana, Gregory S. Paul, Hallopodidae, Harry Seeley, Herbivore, Herrerasauridae, Herrerasaurus, Hesperornithes, Holocene, Ichnotaxon, Infection, Insectivore, Jacques Gauthier, Jurassic, Juravenator, Late Triassic, Laurasia, Liliensternus, Lizard, Maniraptora, Maniraptoriformes, Marginocephalia, Masiakasaurus, Megalosauridae, Megalosauroidea, Metacarpal bones, Morphology (biology), Mosaic evolution, Nature (journal), Neotheropoda, Norian, Omnivore, Omnivoropterygidae, Order (biology), Ornithischia, Ornithomimidae, Ornithomimosauria, Ornithopod, Ornithoscelida, Osteoderm, Othniel Charles Marsh, Oviraptorosauria, Paraphyly, Pathology, Phylogenetic nomenclature, Piscivore, Plateosauria, Plateosauridae, Primate, Protoceratops, Pteropoda, Pterosaur, Radius (bone), Ralph Molnar, Rauisuchia, Rib cage, Rinchen Barsbold, Sacrum, Saurischia, Sauropoda, Sauropodomorpha, Scansoriopterygidae, Scansoriopteryx, Science (journal), Shuangbaisaurus, Sister group, Skull, Spinosauridae, Spinosaurus, Synostosis, Tachiraptor, Tawa hallae, Taxon, Teratosaurus, Tetanurae, Therizinosaur, Theropoda, Thyreophora, Tibia, Toarcian, Triassic, Troodontidae, Tyrannosauridae, Tyrannosaurus, Ulna, University of Maryland, College Park, Velociraptor, Vertebral column, Xuanhanosaurus, Yanornithiformes, Zupaysaurus. Expand index (121 more) »
Abelisaur
Abelisaurs (Abelisauria or Abelisauroidea) were a phylogenetic group within Neotheropoda.
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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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Alfred Romer
Alfred Sherwood Romer (December 28, 1894 – November 5, 1973) was an American paleontologist and biologist and a specialist in vertebrate evolution.
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Allosauridae
Allosauridae is a family of medium to large bipedal, carnivorous allosauroid neotheropod dinosaurs from the Late Jurassic.
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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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Allosaurus
Allosaurus is a genus of carnivorous theropod dinosaur that lived 155 to 150 million years ago during the late Jurassic period (Kimmeridgian to early TithonianTurner, C.E. and Peterson, F., (1999). "Biostratigraphy of dinosaurs in the Upper Jurassic Morrison Formation of the Western Interior, U.S.A." Pp. 77–114 in Gillette, D.D. (ed.), Vertebrate Paleontology in Utah. Utah Geological Survey Miscellaneous Publication 99-1.). The name "Allosaurus" means "different lizard" alluding to its unique concave vertebrae (at the time of its discovery).
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Alvarezsauridae
Alvarezsauridae is a group of small, long-legged dinosaurs.
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Alvarezsauroidea
Alvarezsauroidea is a group of small maniraptoran dinosaurs.
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Anatomical terms of motion
Motion, the process of movement, is described using specific anatomical terms.
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Anchiornis
Anchiornis is a type of small, four-winged paravian dinosaur.
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Anchisaurus
Anchisaurus is a type of early sauropodomorph dinosaur.
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Ancient Greek
The Ancient Greek language includes the forms of Greek used in ancient Greece and the ancient world from around the 9th century BC to the 6th century AD.
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Archaeopterygidae
Archaeopterygidae is a group of maniraptoran dinosaurs that lived during the late Jurassic period.
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Archaeopteryx
Archaeopteryx, meaning "old wing" (sometimes referred to by its German name Urvogel ("original bird" or "first bird")), is a genus of bird-like dinosaurs that is transitional between non-avian feathered dinosaurs and modern birds.
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Argentina
Argentina, officially the Argentine Republic (República Argentina), is a federal republic located mostly in the southern half of South America.
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Associated Press
The Associated Press (AP) is a U.S.-based not-for-profit news agency headquartered in New York City.
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Asymmetry
Asymmetry is the absence of, or a violation of, symmetry (the property of an object being invariant to a transformation, such as reflection).
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Averostra
Averostra, or "bird snouts", is a clade that includes most theropod dinosaurs that have a promaxillary fenestra (fenestra promaxillaris), an extra opening in the front outer side of the maxilla, the bone that makes up the upper jaw.
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Avetheropoda
Avetheropoda, or "bird theropods", is a clade that includes carnosaurians and coelurosaurs to the exclusion of other dinosaurs.
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Avialae
Avialae ("bird wings") is a clade of flying dinosaurs containing their only living representatives, the birds.
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Barnum Brown
Barnum Brown (February 12, 1873 – February 5, 1963), commonly referred to as Mr.
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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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BBC
The British Broadcasting Corporation (BBC) is a British public service broadcaster.
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Beak
The beak, bill, or rostrum is an external anatomical structure of birds that is used for eating and for preening, manipulating objects, killing prey, fighting, probing for food, courtship and feeding young.
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Bee hummingbird
The bee hummingbird, zunzuncito or Helena hummingbird (Mellisuga helenae) is a species of hummingbird which is the world's smallest bird.
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Bipedalism
Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs or legs.
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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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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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Carnian
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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Carnivore
A carnivore, meaning "meat eater" (Latin, caro, genitive carnis, meaning "meat" or "flesh" and vorare meaning "to devour"), is an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of animal tissue, whether through predation or scavenging.
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Carnosauria
Carnosauria is a large group of predatory dinosaurs that lived during the Jurassic and Cretaceous periods.
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Carnotaurus
Carnotaurus is a genus of large theropod dinosaur that lived in South America during the Late Cretaceous period, from about 72 to 69.9 million years ago.
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Ceratosauria
Ceratosaurs are members of a group of theropod dinosaurs defined as all theropods sharing a more recent common ancestry with Ceratosaurus than with birds.
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Ceratosaurus
Ceratosaurus (from Greek κέρας/κέρατος, keras/keratos meaning "horn" and σαῦρος/sauros meaning "lizard") was a predatory theropod dinosaur in the Late Jurassic Period (Kimmeridgian to Tithonian).
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Clade
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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Cladistics
Cladistics (from Greek κλάδος, cládos, i.e., "branch") is an approach to biological classification in which organisms are categorized in groups ("clades") based on the most recent common ancestor.
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Cleveland Museum of Natural History
The Cleveland Museum of Natural History is a natural history museum located approximately five miles (8 km) east of downtown Cleveland, Ohio in University Circle, a 550-acre (220 ha) concentration of educational, cultural and medical institutions.
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Coelophysis
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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Coelophysis bauri
Coelophysis bauri is an extinct species of coelophysid dinosaur that lived 209-201 million years ago during the latter part of the Triassic Period in what is now the southwestern United States.
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Coelophysoidea
Coelophysoids were common dinosaurs of the Late Triassic and Early Jurassic periods.
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Coelurosauria
Coelurosauria (from Greek, meaning "hollow tailed lizards") is the clade containing all theropod dinosaurs more closely related to birds than to carnosaurs. Coelurosauria is a subgroup of theropod dinosaurs that includes compsognathids, tyrannosaurs, ornithomimosaurs, and maniraptorans; Maniraptora includes birds, the only dinosaur group alive today. Most feathered dinosaurs discovered so far have been coelurosaurs. Philip J. Currie considers it probable that all coelurosaurs were feathered. In the past, Coelurosauria was used to refer to all small theropods, this classification has since been abolished.
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Common ostrich
The ostrich or common ostrich (Struthio camelus) is either of two species of large flightless birds native to Africa, the only living member(s) of the genus Struthio, which is in the ratite family.
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Compsognathidae
Compsognathidae is a family of coelurosaurian theropod dinosaurs.
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Compsognathus
Compsognathus (Greek kompsos/κομψός; "elegant", "refined" or "dainty", and gnathos/γνάθος; "jaw") is a genus of small, bipedal, carnivorous theropod dinosaur.
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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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Convergent evolution
Convergent evolution is the independent evolution of similar features in species of different lineages.
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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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Cretaceous–Paleogene extinction event
The Cretaceous–Paleogene (K–Pg) extinction event, also known as the Cretaceous–Tertiary (K–T) extinction, was a sudden mass extinction of some three-quarters of the plant and animal species on Earth, approximately 66 million years ago.
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Daemonosaurus
Daemonosaurus (pron.:"DAY-mow-no-SORE-us") is an extinct genus of theropod dinosaur from the Late Triassic of New Mexico.
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David B. Norman
David Bruce Norman (born 20 June 1952 in the United Kingdom) is a British paleontologist, currently the main curator of vertebrate paleontology at the Sedgwick Museum, Cambridge University.
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Deinocheirus
Deinocheirus is a genus of large ornithomimosaur that lived during the Late Cretaceous around 70 million years ago.
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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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Denticle (tooth feature)
Denticles, also called serrations, are small bumps on a tooth that serve to give the tooth a serrated edge.
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Dilophosauridae
Dilophosauridae is a family of medium to large sized theropod dinosaursHendrickx, C., Hartman, S.A., & Mateus, O. (2015).
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Dilophosaurus
Dilophosaurus is a genus of theropod dinosaur that lived in what is now North America during the Early Jurassic, about 193million years ago.
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Dinosaur
Dinosaurs are a diverse group of reptiles of the clade Dinosauria.
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Dinosaur classification
Dinosaur classification began in 1842 when Sir Richard Owen placed Iguanodon, Megalosaurus, and Hylaeosaurus in "a distinct tribe or suborder of Saurian Reptiles, for which I would propose the name of Dinosauria." In 1887 and 1888 Harry Seeley divided dinosaurs into the two orders Saurischia and Ornithischia, based on their hip structure.
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Dromaeosauridae
Dromaeosauridae is a family of feathered theropod dinosaurs.
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Dromaeosaurus
Dromaeosaurus ("swift running lizard") is a genus of theropod dinosaur which lived during the Late Cretaceous period (middle late Campanian), sometime between 76.5 and 74.8 million years ago, in the western United States and Alberta, Canada.
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Early Jurassic
The Early Jurassic epoch (in chronostratigraphy corresponding to the Lower Jurassic series) is the earliest of three epochs of the Jurassic period.
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Edward Drinker Cope
Edward Drinker Cope (July 28, 1840 – April 12, 1897) was an American paleontologist and comparative anatomist, as well as a noted herpetologist and ichthyologist.
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Egg
An egg is the organic vessel containing the zygote in which an animal embryo develops until it can survive on its own; at which point the animal hatches.
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Egg incubation
Incubation refers to the process by which certain oviparous (egg-laying) animals hatch their eggs; it also refers to the development of the embryo within the egg.
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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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Endocranium
The endocranium in comparative anatomy is a part of the skull base in vertebrates and it represents the basal, inner part of the cranium.
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Eodromaeus
Eodromaeus (meaning "dawn runner") was an genus of basal theropod dinosaur known from the Late Triassic period of Argentina.
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Eoraptor
Eoraptor was one of the earliest known dinosaurs, living approximately 231 to 228 million years ago, during the Late Triassic in Western Gondwana, in the region that is now northwestern Argentina.
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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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Evolution of birds
The evolution of birds began in the Jurassic Period, with the earliest birds derived from a clade of theropoda dinosaurs named Paraves.
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Family (biology)
In biological classification, family (familia, plural familiae) is one of the eight major taxonomic ranks; it is classified between order and genus.
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Feather
Feathers are epidermal growths that form the distinctive outer covering, or plumage, on birds and other, extinct species' of dinosaurs.
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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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Feitianshan Formation
The Feitianshan Formation is a geological formation in Japan.
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Femur
The femur (pl. femurs or femora) or thigh bone, is the most proximal (closest to the hip joint) bone of the leg in tetrapod vertebrates capable of walking or jumping, such as most land mammals, birds, many reptiles including lizards, and amphibians such as frogs.
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Friedrich von Huene
Friedrich von Huene, full name Friedrich Richard von Hoinigen (March 22, 1875 – April 4, 1969) was a German paleontologist who renamed more dinosaurs in the early 20th century than anyone else in Europe.
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Furcula
The furcula ("little fork" in Latin) or wishbone is a forked bone found in birds and some dinosaurs, and is formed by the fusion of the two clavicles.
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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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Genus
A genus (genera) is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology.
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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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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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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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Gregory S. Paul
Gregory Scott Paul (born December 24, 1954) is an American freelance researcher, author and illustrator who works in paleontology, and more recently has examined sociology and theology.
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Hallopodidae
Hallopodidae is a family of Late Jurassic crocodylomorphs.
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Harry Seeley
Harry Govier Seeley (18 February 1839 – 8 January 1909) was a British paleontologist.
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Herbivore
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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Herrerasauridae
Herrerasaurids are among the oldest known dinosaurs, appearing in the fossil record 233.23 million years ago (Late Triassic).
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Herrerasaurus
Herrerasaurus was one of the earliest dinosaurs.
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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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Holocene
The Holocene is the current geological epoch.
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Ichnotaxon
An ichnotaxon (plural ichnotaxa) is defined by the International Code of Zoological Nomenclature as "a taxon based on the fossilized work of an organism", that is, the non-human equivalent of an artifact.
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Infection
Infection is the invasion of an organism's body tissues by disease-causing agents, their multiplication, and the reaction of host tissues to the infectious agents and the toxins they produce.
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Insectivore
robber fly eating a hoverfly An insectivore is a carnivorous plant or animal that eats insects.
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Jacques Gauthier
Jacques Armand Gauthier (born June 7, 1948 in New York City) is an American vertebrate paleontologist, comparative morphologist, and systematist, and one of the founders of the use of cladistics in biology.
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Jurassic
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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Juravenator
Juravenator is a genus of small (75 cm long) coelurosaurian theropod dinosaur, which lived in the area which would someday become the Jura mountains of Germany, about 151 or 152 million years ago.
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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
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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Liliensternus
Liliensternus is an extinct genus of basal Neotheropod dinosaur that lived approximately 210 million years ago during the latter part of the Triassic Period in what is now Germany.
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Lizard
Lizards are a widespread group of squamate reptiles, with over 6,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains.
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Maniraptora
Maniraptora is a clade of coelurosaurian dinosaurs that includes the birds and the non-avian dinosaurs that were more closely related to them than to Ornithomimus velox.
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Maniraptoriformes
Maniraptoriformes is a clade of dinosaurs with pennaceous feathers and wings that contains ornithomimosaurs and maniraptors.
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Marginocephalia
Marginocephalia (/mär′jə-nō-sə-făl′ē-ən/ Latin: margin-head) is a clade of ornithischian dinosaurs that is characterized by a bony shelf or margin at the back of the skull.
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Masiakasaurus
Masiakasaurus is a genus of small predatory theropod dinosaurs from the Late Cretaceous of Madagascar.
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Megalosauridae
Megalosauridae is a monophyletic family of carnivorous theropod dinosaurs within the order Megalosauroidea, closely related to the family Spinosauridae.
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Megalosauroidea
Megalosauroidea (meaning 'great/big lizard forms') is a superfamily (or clade) of tetanuran theropod dinosaurs that lived from the Middle Jurassic to the Late Cretaceous period.
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Metacarpal bones
In human anatomy, the metacarpal bones or metacarpus, form the intermediate part of the skeletal hand located between the phalanges of the fingers and the carpal bones of the wrist which forms the connection to the forearm.
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Morphology (biology)
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features.
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Mosaic evolution
Mosaic evolution (or modular evolution) is the concept that evolutionary change takes place in some body parts or systems without simultaneous changes in other parts.
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Nature (journal)
Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.
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Neotheropoda
Neotheropoda (meaning "new theropods") is a clade that includes coelophysoids and more advanced theropod dinosaurs, and the only group of theropods who survived the Triassic–Jurassic extinction event.
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Norian
The Norian is a division of the Triassic geological period.
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Omnivore
Omnivore is a consumption classification for animals that have the capability to obtain chemical energy and nutrients from materials originating from plant and animal origin.
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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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Order (biology)
In biological classification, the order (ordo) is.
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Ornithischia
Ornithischia is an extinct clade of mainly herbivorous dinosaurs characterized by a pelvic structure similar to that of birds.
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Ornithomimidae
Ornithomimidae (meaning "bird-mimics") is a group of theropod dinosaurs which bore a superficial resemblance to modern ostriches.
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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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Ornithopod
Ornithopods or members of the clade Ornithopoda are a group of ornithischian dinosaurs that started out as small, bipedal running grazers, and grew in size and numbers until they became one of the most successful groups of herbivores in the Cretaceous world, and dominated the North American landscape.
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Ornithoscelida
Ornithoscelida is a clade that includes various major groupings of dinosaurs.
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Osteoderm
Osteoderms are bony deposits forming scales, plates or other structures based in the dermis.
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Othniel Charles Marsh
Othniel Charles Marsh (October 29, 1831 – March 18, 1899) was an American paleontologist.
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Oviraptorosauria
Oviraptorosaurs ("egg thief lizards") are a group of feathered maniraptoran dinosaurs from the Cretaceous Period of what are now Asia and North America.
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Paraphyly
In taxonomy, a group is paraphyletic if it consists of the group's last common ancestor and all descendants of that ancestor excluding a few—typically only one or two—monophyletic subgroups.
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Pathology
Pathology (from the Ancient Greek roots of pathos (πάθος), meaning "experience" or "suffering" and -logia (-λογία), "study of") is a significant field in modern medical diagnosis and medical research, concerned mainly with the causal study of disease, whether caused by pathogens or non-infectious physiological disorder.
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Phylogenetic nomenclature
Phylogenetic nomenclature, often called cladistic nomenclature, is a method of nomenclature for taxa in biology that uses phylogenetic definitions for taxon names as explained below.
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Piscivore
A piscivore is a carnivorous animal that eats primarily fish.
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Plateosauria
Plateosauria is a clade of sauropodomorph dinosaurs which lived during the Late Triassic to the Late Cretaceous.
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Plateosauridae
Plateosauridae is a family of plateosaurian sauropodomorphs.
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Primate
A primate is a mammal of the order Primates (Latin: "prime, first rank").
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Protoceratops
Protoceratops (from Greek /πρωτο- "first", /κερατ- "horn" and /-ωψ "face", meaning "First Horned Face") is a genus of sheep-sized (1.8 m long) herbivorous ceratopsian dinosaur, from the Upper Cretaceous Period (Campanian stage) of what is now Mongolia.
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Pteropoda
Pteropoda (common name pteropods, from the Greek meaning "wing-foot") are specialized free-swimming pelagic sea snails and sea slugs, marine opisthobranch gastropods.
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Pterosaur
Pterosaurs (from the Greek πτερόσαυρος,, meaning "winged lizard") were flying reptiles of the extinct clade or order Pterosauria.
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Radius (bone)
The radius or radial bone is one of the two large bones of the forearm, the other being the ulna.
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Ralph Molnar
Ralph E. Molnar is a paleontologist who had been Curator of Mammals at the Queensland Museum and more recently associated with the Museum of Northern Arizona.
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Rauisuchia
"Rauisuchia" is a group of mostly large (often) Triassic archosaurs.
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Rib cage
The rib cage is an arrangement of bones in the thorax of most vertebrates.
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Rinchen Barsbold
Dr.
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Sacrum
The sacrum (or; plural: sacra or sacrums) in human anatomy is a large, triangular bone at the base of the spine, that forms by the fusing of sacral vertebrae S1S5 between 18 and 30years of age.
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Saurischia
Saurischia (meaning "reptile-hipped" from the Greek (σαῦρος) meaning 'lizard' and (ἴσχιον) meaning 'hip joint') is one of the two basic divisions of dinosaurs (the other being Ornithischia).
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Sauropoda
Sauropoda, or the sauropods (sauro- + -pod, "lizard-footed"), are a clade of saurischian ("lizard-hipped") dinosaurs.
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Sauropodomorpha
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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Scansoriopterygidae
Scansoriopterygidae (meaning "climbing wings") is an extinct family of climbing and gliding maniraptoran dinosaurs.
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Scansoriopteryx
Scansoriopteryx ("climbing wing") is a genus of avialan dinosaur.
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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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Shuangbaisaurus
Shuangbaisaurus (meaning "Shuangbai reptile") is an extinct genus of theropod dinosaur, possibly a dilophosaurid, that lived in the Early Jurassic of Yunnan Province, China.
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Sister group
A sister group or sister taxon is a phylogenetic term denoting the closest relatives of another given unit in an evolutionary tree.
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Skull
The skull is a bony structure that forms the head in vertebrates.
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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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Synostosis
Synostosis (plural: synostoses) is fusion of two bones.
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Tachiraptor
Tachiraptor ("thief of Táchira") is a genus of carnivorous theropod dinosaurs found in the early Jurassic period La Quinta Formation of Venezuela.
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Tawa hallae
Tawa (named after the Hopi word for the Puebloan sun god) is a genus of theropod dinosaur from the Late Triassic period.
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Taxon
In biology, a taxon (plural taxa; back-formation from taxonomy) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit.
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Teratosaurus
Teratosaurus is a genus of rauisuchians known from the Triassic Stubensandstein (Löwenstein Formation - Norian stage) of Germany.
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Tetanurae
Tetanurae (/ˌtɛtəˈnjuːriː/ or "stiff tails") is a clade that includes most theropod dinosaurs, including tyrannosaurids, megalosaurids, ornithomimids, allosaurids, maniraptora, and Aves.
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Therizinosaur
Therizinosaurs (or segnosaurs) were theropod dinosaurs belonging to the clade Therizinosauria.
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Theropoda
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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Thyreophora
The Thyreophora ("shield bearers", often known simply as "armored dinosaurs" - Greek: θυρεος, thyreos, a large oblong shield, like a door and φορεω, I carry) were a subgroup of the ornithischian dinosaurs.
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Tibia
The tibia (plural tibiae or tibias), also known as the shinbone or shankbone, is the larger, stronger, and anterior (frontal) of the two bones in the leg below the knee in vertebrates (the other being the fibula, behind and to the outside of the tibia), and it connects the knee with the ankle bones.
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Toarcian
The Toarcian is, in the ICS' geologic timescale, an age or stage in the Early or Lower Jurassic.
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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.
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Troodontidae
Troodontidae is a family of bird-like theropod dinosaurs.
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Tyrannosauridae
Tyrannosauridae (or tyrannosaurids, meaning "tyrant lizards") is a family of coelurosaurian theropod dinosaurs that comprises two subfamilies containing up to thirteen genera, including the eponymous Tyrannosaurus.
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Tyrannosaurus
Tyrannosaurus is a genus of coelurosaurian theropod dinosaur.
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Ulna
The ulna is a long bone found in the forearm that stretches from the elbow to the smallest finger, and when in anatomical position, is found on the medial side of the forearm.
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University of Maryland, College Park
The University of Maryland, College Park (commonly referred to as the University of Maryland, UMD, or simply Maryland) is a public research university located in the city of College Park in Prince George's County, Maryland, approximately from the northeast border of Washington, D.C. Founded in 1856, the university is the flagship institution of the University System of Maryland.
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Velociraptor
Velociraptor (meaning "swift seizer" in Latin) is a genus of dromaeosaurid theropod dinosaur that lived approximately 75 to 71 million years ago during the later part of the Cretaceous Period.
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Vertebral column
The vertebral column, also known as the backbone or spine, is part of the axial skeleton.
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Xuanhanosaurus
Xuanhanosaurus (meaning "Xuanhan lizard") is a genus of theropod dinosaur which lived during the Jurassic of China.
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Yanornithiformes
Yanornithiformes is an order of ornithuromorph birds from the early Cretaceous Period of China.
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Zupaysaurus
Zupaysaurus ("ZOO-pay-SAWR-us") is a genus of early theropod dinosaur living during the Rhaetian stage of the Late Triassic to Hettangian stage of the Early Jurassic of what is now Argentina.
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Redirects here:
Avepod, Avepods, Carnivorous dinosaur, Carnivorous dinosaurs, Carnosauriformes, Goniopoda, Meat eating dinosaur, Meat-eating dinosaur, Neotheropods, Non-avian, Therapod, Therapoda, Therapods, Theropod, Theropod dinosaur, Theropod dinosaurs, Theropods, Unamed Tyrannosauroid.
References
[1] https://en.wikipedia.org/wiki/Theropoda
