Trionyx ninae Chkhikvadze 1971 (softshell turtle)

Reptilia - Testudines - Trionychidae

Synonyms: Trionyx turgaicus Kuznetsov and Chkhikvadze 1977, Trionyx zaisanensis Chkhikvadze 1973

Full reference: V. M. Chkhikvadze. 1971. [New turtles from the Oligocene of Kazakhstan and the systematic position of some species in Mongolia]. Soobshcheniya Akademii Nauk Gruzinskoi SSR 62:489-492

Belongs to Trionyx according to G. L. Georgalis and W. G. Joyce 2017

See also Vitek and Danilov 2015

Sister taxa: Trionyx admirabilis, Trionyx aequa, Trionyx allani, Trionyx austerus, Trionyx baynshirensis, Trionyx beecheri, Trionyx boulengeri, Trionyx capellinii, Trionyx dissolutus, Trionyx ellipticus, Trionyx eloisae, Trionyx foveatus, Trionyx gangeticus, Trionyx gilbentuensis, Trionyx gobiensis, Trionyx gregarius, Trionyx henrici, Trionyx ikoviensis, Trionyx impressus, Trionyx jixiensis, Trionyx johnsoni, Trionyx kansaiensis, Trionyx latus, Trionyx leucopotamicus, Trionyx linchuensis, Trionyx messelianus, Trionyx miensis, Trionyx minusculus, Trionyx miocaenus, Trionyx mira, Trionyx onomatoplokos, Trionyx phayrei, Trionyx pliocenicus, Trionyx reesidei, Trionyx riabinini, Trionyx robustus, Trionyx shiluutulensis, Trionyx silvestris, Trionyx singularis, Trionyx triunguis, Trionyx uintaensis, Trionyx vegetus, Trionyx vindobonensis

Type specimens:

  • Trionyx ninae: IPGAS KK-19, a partial shell (left hypoplastron). Its type locality is Kizyl-Kak, which is in an Oligocene terrestrial horizon in the Betpakdala Formation of Kazakhstan.
  • Trionyx turgaicus: IPGAS C-5-3, a partial skeleton. Its type locality is Donguz-Tau, which is in an Oligocene terrestrial horizon in the Chilikty Formation of Kazakhstan.
  • Trionyx zaisanensis: IPGAS Z-34-6, a partial shell. Its type locality is Kiin Kerish (Kusto svita), which is in an Oligocene terrestrial horizon in Kazakhstan.

Ecology: aquatic piscivore-carnivore

Distribution: found only at Kizyl-Kak

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Specimen images are retrieved through the ePANDDA API.

Click image to enlarge. Click to access iDigBio record.