hadrosaurus(redirected from Ornithotarsus)
Also found in: Thesaurus.
A hadrosaurid dinosaur of the genus Hadrosaurus, having a bulky body and no crest on the head. A hadrosaurus fossil found in New Jersey (1858) was the first nearly complete dinosaur skeleton excavated in the United States. Also called hadrosaur.
[New Latin Hadrosaurus, genus name : Greek hadros, thick; see hadron + sauros, lizard.]
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|Noun||1.||hadrosaurus - any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic|
anatotitan - one of the largest and most famous duck-billed dinosaurs
corythosaur, corythosaurus - duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet
edmontosaurus - duck-billed dinosaur from Canada found as a fossilized mummy with skin