Parent taxon: Cryptodira according to E. A. Zvonok and I. G. Danilov 2017
See also Parham and Pyenson 2010
Sister taxa: Adocusia, Bashuchelyidae, Carettochelyoidea, Charitonyx tajanikolaevae, Chelonemydidae, Chelonioidea, Chelydridae, Chelydroidea, Chersidae, Chitracephalus, Cryptoderinea, Dermatochelydidae, Dermochelyoidea, Durocryptodira, Eucryptodira, Galvechelone, Glyptopidae, Glyptopsidae, Indochelyidae, Kallokibotioninae, Kayentachelyidae, Kinosternia, Kinosternoidae, Meiolanidae, Nanhsiungchelyidae, Pantestudinoidea, Pantrionychia, Platysternoidea, Polysternum, Selmacryptodira, Trionychia, Trionychidae, Trionychoidea, Tritosternidae
Subtaxa: Mexichelys Pancheloniidae Sphenophyllum colombianum
Ecology: aquatic omnivore
Distribution:
• Miocene of Italy (1 collection)
• Oligocene of United States (4: South Carolina, Virginia)
• Eocene of Belgium (1), Morocco (1), Ukraine (4), the United Kingdom (7), United States (3: Maryland , New Jersey, South Carolina)
• Paleocene of Argentina (2), Denmark (1), Morocco (4), United States (7: Maryland, New Jersey, Virginia)
• Cretaceous to Paleogene of United States (2: New Jersey)
• Cretaceous of Angola (1), Chile (3), China (1), Germany (1), Mexico (2), the Netherlands (1), the Russian Federation (1), Sweden (1), United States (60: Alabama, Arkansas, California, Kansas, Maryland, Mississippi, New Jersey, South Carolina, Utah)
Total: 108 collections including 123 occurrences