Hydrotherosaurus
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| phylum | Chordata | Hydrotherosaurus (meaning "water beast lizard") is an extinct genus of elasmosaurid plesiosaur from the Upper Cretaceous (Maastrichtian stage) of Fresno County, California, measuring up to 13 m in length.
For more information, visit the Wikipedia entry. Get back to Sauropterygia |
| clade | Diapsida | |
| superorder | Sauropterygia | |
| order | Plesiosauria | |
| family | Elasmosauridae | |
| genus | Hydrotherosaurus | |
| species | H. alexandrae | |
| Temporal range | Late Cretaceous |
