corythosaur: duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet
hadrosaur: any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic
pueblo: a member of any of about two dozen Native American peoples called `Pueblos' by the Spanish because they live in pueblos (villages built of adobe and rock)