#hadrosaur__hadrosaurus__hadrosauru__duck-billed_dinosaur  any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic
  supertype:  ornithischian_dinosaur__ornithischiandinosaur__ornithischian  herbivorous dinosaur with a pelvis like that of a bird
  member of:  family_Hadrosauridae
  subtype:  anatotitan  one of the largest and most famous duck-billed dinosaurs
  subtype:  corythosaur__corythosaurus__corythosauru  duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet
  subtype:  edmontosaurus__edmontosauru  duck-billed dinosaur from Canada found as a fossilized mummy with skin
  subtype:  trachodon__trachodont  large duck-billed dinosaur of the Upper Cretaceous

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