Superfamily Trionychoidea Fitzinger 1826 (turtle)
PaleoDB taxon number: 37646
Parent taxon: Cryptodira according to J. R. Bourque et al. 2015
Sister taxa: Adocusia, Bashuchelyidae, Carettochelyoidea, Charitonyx tajanikolaevae, Chelonemydidae, Chelydroidea, Chersidae, Chitracephalus, Cryptoderinea, Dermatochelydidae, Dermochelyoidea, Durocryptodira, Eucryptodira, Galvechelone, Glyptopidae, Glyptopsidae, Indochelyidae, Kallokibotioninae, Kayentachelyidae, Kinosternia, Kinosternoidae, Meiolanidae, Panchelonioidea, Pantestudinoidea, Pantrionychia, Platysternoidea, Polysternum, Selmacryptodira, Trionychia, Tritosternidae
Subtaxa: Adocidae, Basilochelys, Kinosternoidea, Peltochelyidae, Planetochelyidae, Sinaspideretes
Type: Trionyx
Ecology: aquatic omnivore