Tenontosaurus

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Tenontosaurus
Temporal range: Lower Cretaceous
Mounted skeleton, North Carolina Museum of Natural Sciences
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Dinosauria
Order: Ornithischia
Suborder: Cerapoda
Infraorder: Ornithopoda
Genus: Tenontosaurus
Ostrom, 1970
Species
  • T. tilletti Ostrom, 1970 (type)
  • T. dossi Winkler, Murray & Jacobs, 1997

Tenontosaurus is a genus of medium- to large-sized ornithopod dinosaur. It was formerly thought to be a 'hypsilophodont', but since Hypsilophodontia is no longer considered a clade, it is now considered to be a very primitive iguanodont.