Biology:Ptychotrygon
From HandWiki
Short description: Extinct genus of cartilaginous fishes
| Ptychotrygon | |
|---|---|
| |
| 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
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". http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34704.
- ↑ 2.0 2.1 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" (in en). Papers in Palaeontology 7: 353–376. doi:10.1002/spp2.1287. ISSN 2056-2802. https://onlinelibrary.wiley.com/doi/abs/10.1002/spp2.1287.
- ↑ 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. https://doi.org/10.1080/14772019.2019.1578832.
- ↑ "Fossilworks: Ptychotrygon". http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34704&is_real_user=1.
Wikidata ☰ Q25094563 entry
 |  |
