Trionyx

Trionyx is a genus of softshell turtles belonging to the family Trionychidae. In the past many species in the family were classified in this genus, but today T. triunguis, the African or Nile softshell turtle, is the only extant softshell still classified as Trionyx. The other species still assigned to this genus are only known from fossils. T. triunguis is a relatively large, aquatic piscivore.

Trionyx
Temporal range: Early Cretaceous to recent, 125.45–0 Ma[1]
T. triunguis, the only extant species
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Family: Trionychidae
Subfamily: Trionychinae
Genus: Trionyx
Geoffroy Saint-Hilaire, 1809
Synonyms

Species
  • Trionyx triunguis (Forsskål, 1775) – African or Nile softshell turtle
  • † Trionyx aquitanicus Delfortrie,1869 (nomen dubium)[2]
  • † Trionyx baynshirensis[3]
  • † Trionyx bowerbanki Lydekker, 1889 (nomen dubium)[2]
  • † Trionyx buiei Cope, 1869-1870 (nomen dubium)[4]
  • † Trionyx dissolutus[5]
  • † Trionyx gilbentuensis[3]
  • † Trionyx gobiensis[3]
  • † Trionyx halophilus Cope, 1869 (nomen dubium)[4]
  • † Trionyx ikoviensis
  • † Trionyx kansaiensis
  • † Trionyx miensis Okazaki and Yoshida, 1977
  • † Trionyx parisiensis Gray, 1831 (nomen dubium)[2]
  • † Trionyx quinni Holman, 1982 (nomen dubium)[4]
  • † Trionyx sculptus Gilmore, 1931 (nomen dubium)[2]
  • † Trionyx shiluutulensis[3]

† = extinct

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References
  1. "Trionyx". FossilWorks. Retrieved 20 October 2019.
  2. Georgalis, Georgios L.; Joyce, Walter G. (2017). "A Review of the Fossil Record of Old World Turtles of the Clade Pan-Trionychidae" (PDF). Bulletin of the Peabody Museum of Natural History. 58 (1): 115–208.
  3. Igor G. Danilov; Ren Hirayama; Vladimir B. Sukhanov; Shigeru Suzuki; Mahito Watabe; Natasha S. Vitek (2014). "Cretaceous soft-shelled turtles (Trionychidae) of Mongolia: new diversity, records and a revision". Journal of Systematic Palaeontology. 12 (7): 799–832. doi:10.1080/14772019.2013.847870.
  4. Vitek, Natasha S.; Joyce, Walter G. (2015). "A Review of the Fossil Record of New World Turtles of the Clade Pan-Trionychidae". Bulletin of the Peabody Museum of Natural History.
  5. Natasha S. Vitek; Igor G. Danilov (2014). "Soft-shelled turtles (Trionychidae) from the Cenomanian of Uzbekistan". Cretaceous Research. 49: 1–12. doi:10.1016/j.cretres.2014.01.004. hdl:2152/41076.
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