Reptilia - Testudines - Trionychidae

Alternative combination: Amyda johnsoni

Synonym: Amyda neimenguensis Yeh 1965

Full reference: C. W. Gilmore. 1931. Fossil turtles of Mongolia. Bulletin of the American Museum of Natural History 59:213-257

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

See also Brinkman et al. 2008, Gilmore 1931 and Yeh 1963

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 jixiensis, Trionyx kansaiensis, Trionyx latus, Trionyx leucopotamicus, Trionyx linchuensis, Trionyx miensis, Trionyx minusculus, Trionyx miocaenus, Trionyx mira, Trionyx ninae, Trionyx nopcsai, Trionyx onomatoplokos, Trionyx phayrei, Trionyx pliocenicus, Trionyx reesidei, Trionyx riabinini, Trionyx robustus, Trionyx shiluutulensis, Trionyx silvestris, Trionyx singularis, Trionyx triunguis, Trionyx uintaensis, Trionyx vindobonensis

Type specimens:

• Trionyx johnsoni: AMNH 6357, a dermal scale. Its type locality is Telegraph Line Camp, which is in an Eocene fluvial conglomerate in the Irdin Manha Formation of China.
• Amyda neimenguensis: IVPP V 2870, a partial skeleton (carapace). Its type locality is Ulan Shireh (SSPE), which is in an Eocene terrestrial horizon in the Shara Murum Formation of China.

Ecology: aquatic piscivore-carnivore

Distribution:

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Specimen images are retrieved through the ePANDDA API.