Seeleyosaurus
Seeleyosaurus is an extinct genus of plesiosaur. It is known from a large almost complete skeleton from the Upper Lias (Toarcian) of Württemberg, Germany. There seems to be the impression of a rhomboidal flap of skin in a vertical plane; if so, many plesiosaurs may have been equipped in this way.[1] The holotype was destroyed in 1945 (WWII) and only a cast exists today. A second specimen, preserved in 3D, has survived until today.
| Seeleyosaurus | |
|---|---|
 | |
| Cast of Seeleyosaurus guilelmiimperatoris fossil with reconstructed parts | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | †Sauropterygia |
| Order: | †Plesiosauria |
| Family: | †Microcleididae |
| Genus: | †Seeleyosaurus White, 1940 |
| Type species | |
| †Seeleyosaurus guilelmiimperatoris (Dames, 1895) | |
Classification
Restoration
The following cladogram follows an analysis by Ketchum & Benson, 2011.[1]
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References
- Ketchum, Hillary F.; Benson, Roger B.J. (2011). "A new pliosaurid (Sauropterygia, Plesiosauria) from the Oxford Clay Formation (Middle Jurassic, Callovian) of England: evidence for a gracile, longirostrine grade of Early-Middle Jurassic pliosaurids". Special Papers in Palaeontology. 86: 109–129. doi:10.1111/j.1475-4983.2011.01083.x (inactive 2020-01-24).
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