| Hydrorion | |
|---|---|
| Skeleton | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sauropsida |
| Superorder: | Sauropterygia |
| Order: | Plesiosauria |
| Family: | Plesiosauridae |
| Genus: | Hydrorion |
Hydrorion (meaning 'water hunter') is an extinct genus of plesiosaur. It was found in Jurassic formations in Germany. The only species is Hydrorion brachypterygius.