genus Brontosaurus
large quadrupedal herbivorous dinosaurs with very long neck and tail; late Jurassic • Syn: genus Apatosaurus • Hypernyms: reptile genus • Member Holonyms: Sauropoda, suborder Sauropoda • Member Meronyms: apatosaur, apatosaurus, brontosaur, brontosaurus, thunder lizard, Apatosaurus excelsus
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