Ptychotrygon
Ptychotrygon is a genus of sawfish-like Late Cretaceous ray whose fossils have been found worldwide.[1] It, Ptychotrygonoides, Texatrygon, and Asflapristis are members of the family Ptychotrygonidae within the suborder Sclerorhynchoidei.[2][3]
| Ptychotrygon | |
|---|---|
 | |
| Ptychotrygon sp. oral teeth from the Cretaceous of Texas, USA | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Order: | Rajiformes |
| Suborder: | †Sclerorhynchoidei |
| Family: | †Ptychotrygonidae |
| Genus: | †Ptychotrygon Jaekel, 1894 |
| Species | |
|
See text. | |
Species
The following species are considered valid:[4][2]
- †Ptychotrygon blainensis
- †Ptychotrygon eutawensis
- †Ptychotrygon geyeri
- †Ptychotrygon mcnultyi
- †Ptychotrygon pustulata
- †Ptychotrygon rostrispatula
- †Ptychotrygon striata
- †Ptychotrygon triangularis
- †Ptychotrygon vermiculata
References
- "Fossilworks: Ptychotrygon". fossilworks.org. Retrieved 2016-04-11.
- Villalobos‐Segura, Eduardo; Underwood, Charlie J.; Ward, David J. "The first skeletal record of the enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the Turonian of Morocco". Papers in Palaeontology. n/a (n/a). 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.
- "Fossilworks: Ptychotrygon". fossilworks.org. Retrieved 2020-10-17.
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