| Rytiodus Temporal range: | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Sirenia |
| Family: | Dugongidae |
| Subfamily: | Dugonginae |
| Genus: | †Rytiodus |
| Species | |
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Rytiodus (meaning Rytina, "wrinkled", an old name for Steller's sea cow) is an extinct genus of sirenian, whose fossils have been discovered in France, Europe and Libya.
With a length of 6 m (20 ft), Rytiodus was about twice the size as modern sirenians, surpassed only by Steller's sea cow, which was up to 8–9 m (26–30 ft) long. Like its closest modern relatives, the dugongs, Rytiodus had a pair of flippers, a streamlined body and a tail fin. Its flattened snout allowed it to feed in shallow coastal waters. Rytiodus had short tusks which it may have used to extract food from the sand.