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Trionychidae - Trionyx messelianus.JPG
Trionyx messelianus from Messel Pit Fossil Site at the Naturmuseum Senckenberg
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Family: Trionychidae
Subfamily: Trionychinae
Genus: Trionyx
Geoffroy Saint-Hilaire, 1809

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.


† = extinct