Ptychotrygon
| Ptychotrygon Temporal range: Late Cretaceous,
| |
|---|---|
| |
| Ptychotrygon sp. oral teeth from the Cretaceous of Texas, USA | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Superorder: | Batoidea |
| Order: | Rajiformes |
| Family: | †Ptychotrygonidae |
| Genus: | †Ptychotrygon Jaekel, 1894 |
| Species | |
|
See text. | |
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]
Species[edit]
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[edit]
- ^ "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. S2CID 210302939.
- ^ 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.
 | This article about prehistoric Rajiformes is a stub. You can help Wikipedia by expanding it. |