Reptilia - Testudines - Trionychidae

Full reference: Y. Okazaki and S. Yoshida. 1977. On a new fossil Trionyx from the Pliocene Age Group, Mie Prefecture, West Japan. Bulletin of the Mizunami Fossil Museum 4:87-95

Belongs to Trionyx according to Y. Okazaki and S. Yoshida 1977

Sister taxa: Trionyx aquitanicus, Trionyx barbarae, Trionyx bowerbanki, Trionyx buiei, Trionyx gangeticus, Trionyx gergensi, Trionyx halophilus, Trionyx henrici, Trionyx hurum, Trionyx ikoviensis, Trionyx incrassatus, Trionyx kansaiensis, Trionyx kyrgyzensis, Trionyx parisiensis, Trionyx phayrei, Trionyx planus, Trionyx rivosus, Trionyx sculptus, Trionyx vittatus

Type specimen: MFM-P1101. Its type locality is Kitakoyama boulder, which is in a Pliocene fluvial-lacustrine siltstone in the Kameyama Formation of Japan.

Ecology: aquatic piscivore-carnivore