thunder lizard

Thesaurus

Noun

1.

thunder lizard - huge quadrupedal herbivorous dinosaur common in North America in the late Jurassicapatosaur, apatosaurus, Apatosaurus excelsus, brontosaur, brontosaurussauropod, 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 animalgenus Apatosaurus, genus Brontosaurus - large quadrupedal herbivorous dinosaurs with very long neck and tail; late Jurassic