corythosaur

Noun
  1. Duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet (synset 101709327)
    is a type of: duck-billed dinosaur, hadrosaur, hadrosaurus - any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic
    belongs to: genus corythosaurus - genus of duck-billed dinosaurs of late Cretaceous
    same as: corythosaurus

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