Telmatosaurus
| Telmatosaurus Temporal range: Late Cretaceous, | |
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| Holotype skull | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Order: | †Ornithischia |
| Suborder: | †Ornithopoda |
| Clade: | †Hadrosauromorpha |
| Genus: | †Telmatosaurus Nopcsa, 1903 |
| Type species | |
| Telmatosaurus transsylvanicus Nopcsa, 1903 | |
| Synonyms | |
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Telmatosaurus (meaning "marsh lizard") is a genus of basal hadrosaurid dinosaur from the Late Cretaceous. It was about five meters (16 ft) long. It was found in what is now Romania.