Psephochelys
| Psephochelys Temporal range: Late Triassic
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| Fossil specimen | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | †Sauropterygia |
| Order: | †Placodontia |
| Family: | †Placochelyidae |
| Genus: | †Psephochelys Li and Rieppel, 2002 |
| Type species | |
| †Psephochelys polyosteoderma Li and Rieppel, 2002
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Psephochelys (meaning "pebbly turtle") is an extinct genus of placodont reptile from the Late Triassic of China. It is represented by a single species, Psephochelys polyosteoderma, named in 2002 on the basis of a single partial skeleton found in an outcrop of the Carnian-age Falong Formation in Guizhou Province. Psephochelys is classified as a member of the family Placochelyidae, which is within the larger placodont superfamily Cyamodontoidea. Like other cyamodontoids, Psephochelys has a wide shell covering its body, similar to that of a turtle. However, unlike those of other cyamodontoids, the shell of Psephochelys only covers its back. The plastron, which covers the underside of other cyamodontoids, is absent, and in its place are rib-like gastralia surrounded by loosely connecting osteoderms or bony plates.[1]
References[edit]
- ^ Li, C. (2002). "A new cyamodontoid placodont from Triassic of Guizhou, China". Chinese Science Bulletin. 47 (5): 403. Bibcode:2002ChSBu..47..403L. doi:10.1360/02tb9094. S2CID 129796015.
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