#order_Saurischia__Saurischia extinct terrestrial reptiles: theropods (carnivorous); sauropods (herbivorous)
supertype: animal_order the order of animals
member of: subclass_Archosauria
member: saurischian_dinosaur__saurischiandinosaur__saurischian herbivorous or carnivorous dinosaur having a three-pronged pelvis like that of a crocodile
member: suborder_Sauropodomorpha__Sauropodomorpha gigantic herbivorous dinosaurs having huge bodies with long necks and small heads: Prosauropoda and Sauropoda (apatosaurus; diplodocus; titanosaurs)
member: suborder_Prosauropoda__Prosauropoda the earliest known dinosaurs
member: suborder_Sauropoda__Sauropoda any of the sauropod dinosaurs
member: sauropod_dinosaur__sauropod very large herbivorous dinosaur of the Jurassic and Cretaceous having a small head a long neck and tail and five-toed limbs; largest known land animal
member: genus_Apatosaurus__genus_Brontosaurus large quadrupedal herbivorous dinosaurs with very long neck and tail; late Jurassic
member: apatosaur__apatosaurus__brontosaur__brontosaurus__thunder_lizard__thunderlizard__Apatosaurus_excelsus huge quadrupedal herbivorous dinosaur common in N. America in the late Jurassic
member: genus_Barosaurus huge quadrupedal herbivorous dinosaur; late Jurassic
member: barosaur__barosaurus 5-story-tall dinosaur
member: genus_Diplodocus a reptile genus of the suborder Sauropoda
member: diplodocus huge quadrupedal herbivore with long neck and tail; of late Jurassic in western N. America
member: family_Titanosauridae__Titanosauridae herbivorous dinosaurs of the Cretaceous
member: genus_Titanosaurus__Titanosaurus genus of herbivorous dinosaurs flourishing during the Cretaceous in South America
member: titanosaur__titanosaurian amphibious quadrupedal herbivorous dinosaur with a long thin neck and whiplike tail; of the Cretaceous mostly in the southern hemisphere
member: genus_Argentinosaurus enormous dinosaur of the middle Cretaceous found in Argentina
member: argentinosaur huge herbivorous dinosaur of Cretaceous found in Argentina
member: genus_Seismosaurus__Seismosaurus genus of large herbivorous dinosaurs of Cretaceous found in western North America
member: ground-shaker__seismosaur huge herbivorous dinosaur of the Cretaceous found in western North America
member: suborder_Theropoda__Theropoda carnivorous saurischian dinosaurs with short forelimbs; Jurassic and Cretaceous
member: theropod_dinosaur__theropod__bird-footed_dinosaur any of numerous carnivorous dinosaurs of the Triassic to Cretaceous with short forelimbs that walked or ran on strong hind legs
member: suborder_Ceratosaura primitive saurischian dinosaurs
member: genus_Ceratosaurus primitive saurischian carnivorous dinosaurs
member: coelophysis__coelophysi one of the oldest known dinosaurs; late Triassic; cannibalistic
member: ceratosaur__ceratosaurus primitive medium-sized theropod; swift-running bipedal carnivorous dinosaur having grasping hands with sharp claws and a short horn between the nostrils; Jurassic in North America
member: genus_Coelophysis late Triassic carnivorous saurischian dinosaurs
member: suborder_Carnosaura__Carnosaura largest carnivorous land animals ever known
member: carnosaur large carnivorous bipedal dinosaur having huge claws
member: genus_Tyrannosaurus includes a single species
member: tyrannosaur__tyrannosauru__Tyrannosaurus_rex large carnivorous bipedal dinosaur having enormous teeth with knifelike serrations; may have been a scavenger rather than an active predator; Upper Cretaceous; North America
member: genus_Allosaurus__genus_Antrodemus carnivorous dinosaur of North America; late Jurassic
member: allosaur__allosaurus late Jurassic carnivorous dinosaur; similar to but somewhat smaller than tyrannosaurus
member: genus_Compsognathus a reptile genus of Theropoda
member: compsognathus__compsognathu very small bipedal carnivorous dinosaur of the late Jurassic in Bavaria
member: genus_Herrerasaurus primitive theropod found in Argentina; early Triassic
member: herrerasaur__herrerasaurus__herrerasauru a kind of theropod dinosaur found in Argentina
member: genus_Eoraptor primitive theropod found in Argentina; early Triassic
member: eoraptor a theropod dinosaur of the genus Eoraptor
member: family_Megalosauridae__Megalosauridae megalosaurs
member: genus_Megalosaurus type genus of the Megalosauridae
member: megalosaur__megalosaurus gigantic carnivorous bipedal dinosaur of the Jurassic or early Cretaceous in Europe
member: suborder_Ornithomimida__Ornithomimida lightly built medium-size theropods
member: ornithomimid lightly built medium-sized dinosaur having extremely long limbs and necks with small heads and big brains and large eyes
member: genus_Struthiomimus small toothless saurischian dinosaurs; upper Cretaceous of Canada
member: struthiomimus__struthiomimu small light-boned toothless dinosaur resembling an ostrich in size and proportions
member: genus_Deinocheirus a reptile genus of Ornithomimida
member: deinocheirus lightly built medium-sized theropod with long limbs and neck
member: suborder_Maniraptora__Maniraptora advanced theropods including oviraptorids and dromaeosaurs and possibly even modern birds
member: maniraptor advanced carnivorous theropod
member: oviraptorid advanced carnivorous theropod
member: genus_Velociraptor advanced carnivorous theropod
member: velociraptor small active carnivore that probably fed on protoceratops; possibly related more closely to birds than to other dinosaurs
member: family_Dromaeosauridae__Dromaeosauridae swift-running bipedal dinosaurs
member: dromaeosaur a kind of maniraptor
member: genus_Deinonychus advanced bipedal carnivorous dinosaur
member: deinonychus__deinonychu swift agile wolf-sized bipedal dinosaur having a large curved claw on each hind foot; of the Cretaceous
member: genus_Utahraptor advanced bipedal carnivorous dinosaur
member: utahraptor__superslasher large (20-ft) and swift carnivorous dinosaur having an upright 15-in slashing claw on each hind foot; early Cretaceous
member: genus_Mononychus authorities disagree over whether to classify the genus as bird or dinosaur
member: Mononychus_olecranus 75-million-year-old turkey-sized long-legged fossil found in the Gobi Desert of Mongolia having birdlike fused wrist bones and keeled breastbone and a long tail resembling a dinosaur's; short 3-inch-long forelimbs end in a single claw instead of wings; classification as bird or dinosaur is in dispute
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