Tenontosaurus
| Tenontosaurus Temporal range: Lower Cretaceous
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| Mounted skeleton, North Carolina Museum of Natural Sciences | |
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| Genus: | Tenontosaurus Ostrom, 1970
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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.
