Parent taxon: Cryptodira according to E. A. Zvonok and I. G. Danilov 2017
See also Parham and Pyenson 2010
Sister taxa: Adocusia, Carettochelyoidea, Chelonemydidae, Chelonioidea, 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: Pancheloniidae Sphenophyllum colombianum
Ecology: aquatic omnivore
Distribution:
• Oligocene of United States (3: South Carolina, Virginia collections)
• Eocene of Ukraine (1), United States (1: South Carolina)
• Paleocene of Denmark (1), United States (1: New Jersey)
• Cretaceous to Paleogene of United States (1: New Jersey)
• Cretaceous of Chile (1), China (1), Germany (1), the Netherlands (1), the Russian Federation (2), Sweden (1), United States (52: Alabama, Arkansas, Kansas, Maryland, Mississippi, New Jersey, South Carolina, Utah)
Total: 67 collections including 71 occurrences