"Trionyx" kansaiensis

"Trionyx" kansaiensis
Temporal range:
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Testudines
Suborder: Cryptodira
Clade: Pan-Trionychidae
Genus: "Trionyx"
Species:
"T." kansaiensis
Binomial name
"Trionyx" kansaiensis
Vitek and Danilov 2010

Trionyx kansaiensis is an extinct species of softshell turtle uncovered from the Late Cretaceous of Tajikistan and Qyzylorda, Kazakhstan.Fossil evidence from the Bissekty Formation in Uzbekistan indicate that the Trionyx Kansaiensis or a closely related species were more widely spread across Central Asia during the Late Cretaceous than research previously showed (Vitek, 2013). Other fossils from the Bostobe Formation suggest that this species lived in river and delta environments. T. Kansaiensis’ shell anatomy shows intermediate traits between very early and modern day trionychids, suggesting that it came along somewhere in the middle of the evolutionary history of the species (Vitek and Danilov, 2010).[1]

References

  1. ^ Vitek, N.S.; Danilov, I.G. (2010). "New material and a reassessment of soft-shelled turtles (Trionychidae) from the Late Cretaceous of Middle Asia and Kazakhstan" (PDF). Journal of Vertebrate Paleontology. 30 (2): 383–393. Bibcode:2010JVPal..30..383V. doi:10.1080/02724631003617548. S2CID 83498792.