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Ptychotrygon

From Wikipedia, the free encyclopedia

Ptychotrygon
Temporal range: Late Cretaceous, 94.3–66 Ma
Ptychotrygon sp. oral teeth from the Cretaceous of Texas, USA
Scientific classification Edit this 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]

References

  1. ^ "Fossilworks: Ptychotrygon". fossilworks.org. Retrieved 17 December 2021.
  2. ^ 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.
  3. ^ 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.
  4. ^ "Fossilworks: Ptychotrygon". fossilworks.org. Retrieved 17 December 2021.


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This page was last edited on 28 January 2024, at 19:33
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