saurischian, saurischian dinosaur - herbivorous or carnivorous dinosaur having a three-pronged pelvis like that of a crocodile

Sauropoda, suborder Sauropoda - any of the sauropod dinosaurs

apatosaur, apatosaurus, Apatosaurus excelsus, brontosaur, brontosaurus, thunder lizard - huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic

barosaur, barosaurus - 5-story-tall dinosaur