#anatotitan one of the largest and most famous duck-billed dinosaurs supertype: #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 member of: #genus_Anatotitan genus of large duck-billed dinosaurs; late Cretaceous member of: #family_Hadrosauridae__Hadrosauridae duck-billed dinosaurs; upper Cretaceous member of: #suborder_Euronithopoda__Euronithopoda__euronithopod__Ornithopoda__suborder_Ornithopoda widespread group including duck-billed dinosaurs and their early relatives (hadrosaurs; trachodon; iguanodon) member of: #order_Ornithischia__Ornithischia extinct terrestrial reptiles having birdlike pelvises: armored dinosaurs (thyreophorans); bone-headed and horned dinosaurs (marginocephalians); duck-billed dinosaurs (euronithopods) member of: #subclass_Archosauria__Archosauria a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts member of: #class_Reptilia__Reptilia class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals member of: #subphylum_Vertebrata__Vertebrata__Craniata__subphylum_Craniata fishes; amphibians; reptiles; birds; mammals member of: #phylum_Chordata__Chordata comprises true vertebrates and animals having a notochord member of: #kingdom_Animalia__Animalia__animal_kingdom taxonomic kingdom comprising all living or extinct animals
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