huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic
[ Syn: apatosaur , apatosaurus , brontosaur , thunder lizard , apatosaurus excelsus ]
huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic
[ Syn: apatosaur , apatosaurus , brontosaur , thunder lizard , apatosaurus excelsus ]