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apatosaur

DEFINITIONS OF: apatosaur

1

n huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic

Synonyms:
Apatosaurus excelsus, apatosaurus, brontosaur, brontosaurus, thunder lizard
Type of:
sauropod, sauropod dinosaur
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
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