Ptychotrygon
| Ptychotrygon Temporal range: Late Cretaceous,
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| Ptychotrygon sp. oral teeth from the Cretaceous of Texas, USA | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Order: | Rajiformes |
| Suborder: | †Sclerorhynchoidei |
| Family: | †Ptychotrygonidae |
| Genus: | †Ptychotrygon Jaekel, 1894 |
| Species | |
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See text. | |
Ptychotrygon is a genus of sawfish-like Late Cretaceous ray whose fossils have been found worldwide.[1] It, , , and are members of the family Ptychotrygonidae within the suborder Sclerorhynchoidei.[2][3]
Species[]
The following species are considered valid:[4][2]
- †Ptychotrygon blainensis
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- †Ptychotrygon triangularis
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References[]
- ^ "Fossilworks: Ptychotrygon". fossilworks.org. Retrieved 17 December 2021.
- ^ a b Villalobos‐Segura, Eduardo; Underwood, Charlie J.; Ward, David J. (2021). "The first skeletal record of the enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the Turonian of Morocco". Papers in Palaeontology. 7: 353–376. doi:10.1002/spp2.1287. ISSN 2056-2802.
- ^ Villalobos-Segura, Eduardo; Underwood, Charlie J.; Ward, David J.; Claeson, Kerin M. (2019-11-02). "The first three-dimensional fossils of Cretaceous sclerorhynchid sawfish: Asflapristis cristadentis gen. et sp. nov., and implications for the phylogenetic relations of the Sclerorhynchoidei (Chondrichthyes)". Journal of Systematic Palaeontology. 17 (21): 1847–1870. doi:10.1080/14772019.2019.1578832. ISSN 1477-2019. S2CID 145940997.
- ^ "Fossilworks: Ptychotrygon". fossilworks.org. Retrieved 17 December 2021.
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Categories:
- Prehistoric cartilaginous fish genera
- Late Cretaceous cartilaginous fish
- Late Cretaceous fish of North America
- Sclerorhynchoidei
- Fossil taxa described in 1894
- Prehistoric cartilaginous fish stubs