apatosaurus definition

  • noun:
    • a really huge sauropod dinosaur for the genus Apatosaurus (or Brontosaurus ) of the late Jurassic Period. Apatosaurs had a long neck and tail and a comparatively little mind.
    • a genus of extinct dinosaurs comprising the brontosaurs; apatosaurs.
    • A genus of dinosaurian reptiles regarding the family Camarasaurid√¶, explained by Marsh through the Upper Jurassic rocks of Colorado.
    • huge quadrupedal herbivorous dinosaur common in united states inside late Jurassic

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