Kingdom Animalia Class Reptilia Rank Suborder | Phylum Chordata Clade Dinosauria | |
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Clade †Hypsilophodontia
Dollo, 1882 Similar Iguanodontia, Tenontosaurus, Hypsilophodon, Ornithopod, Ornithischia |
Hypsilophodontia is a clade of small to large bodied ornithopods that lived during the Cretaceous that were found in North America, Eurasia and Australia. Traditionally the group has included almost all bipedal bird-hipped dinosaurs other than iguanodonts, and some phylogenetic analyses found it to be a natural group, but most recent studies have found that the group is mostly paraphyletic and the taxa within represent a series leading up to Iguanodontia.
References
Hypsilophodontia Wikipedia(Text) CC BY-SA