#saurischian_dinosaur__saurischiandinosaur__saurischian  herbivorous or carnivorous dinosaur having a three-pronged pelvis like that of a crocodile
  supertype:  dinosaur  any of numerous extinct terrestrial reptiles of the Mesozoic era
  member of:  order_Saurischia
  subtype:  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
     subtype:  apatosaur__apatosaurus__brontosaur__brontosaurus__thunder_lizard__thunderlizard__Apatosaurus_excelsus  huge quadrupedal herbivorous dinosaur common in N. America in the late Jurassic
     subtype:  barosaur__barosaurus  5-story-tall dinosaur
  subtype:  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
     subtype:  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
        subtype:  coelophysis__coelophysi  one of the oldest known dinosaurs; late Triassic; cannibalistic
     subtype:  carnosaur  large carnivorous bipedal dinosaur having huge claws
     subtype:  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
     subtype:  allosaur__allosaurus  late Jurassic carnivorous dinosaur; similar to but somewhat smaller than tyrannosaurus
     subtype:  compsognathus__compsognathu  very small bipedal carnivorous dinosaur of the late Jurassic in Bavaria
     subtype:  herrerasaur__herrerasaurus__herrerasauru  a kind of theropod dinosaur found in Argentina
     subtype:  eoraptor  a theropod dinosaur of the genus Eoraptor
     subtype:  megalosaur__megalosaurus  gigantic carnivorous bipedal dinosaur of the Jurassic or early Cretaceous in Europe
     subtype:  ornithomimid  lightly built medium-sized dinosaur having extremely long limbs and necks with small heads and big brains and large eyes
        subtype:  struthiomimus__struthiomimu  small light-boned toothless dinosaur resembling an ostrich in size and proportions
        subtype:  deinocheirus  lightly built medium-sized theropod with long limbs and neck
     subtype:  maniraptor  advanced carnivorous theropod
        subtype:  oviraptorid  advanced carnivorous theropod
        subtype:  velociraptor  small active carnivore that probably fed on protoceratops; possibly related more closely to birds than to other dinosaurs
        subtype:  dromaeosaur  a kind of maniraptor
        subtype:  deinonychus__deinonychu  swift agile wolf-sized bipedal dinosaur having a large curved claw on each hind foot; of the Cretaceous
        subtype:  utahraptor__superslasher  large (20-ft) and swift carnivorous dinosaur having an upright 15-in slashing claw on each hind foot; early Cretaceous
        subtype:  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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