Family Trionychidae Gray 1825 (softshell turtle)
Invalid subtaxa: Aspideretes jaxarticus Riabinin 1938 [nomen nudum], Plastomenus jaxarticus Riabinin 1938 [nomen nudum]
Parent taxon: Trionychoidea according to O. P. Hay 1908
Sister taxa: Basilochelys, Carettochelyidae, Peltochelyidae
Subtaxa: Amyda, Aspideretes, Conchochelys, Crassithecachelys, Cyclanorbis, Cycloderma, Eugenechelys, Eurycephalochelys, Gilmoremys, Hummelichelys, Lissemys, Paleotrionyx, Plastomeninae, Platypeltis, Rafetini, Sinamyda, Sinaspideretes, Temnotrionyx, Trionychinae, Zangerlichelys
Ecology: aquatic piscivore-carnivore