PaleoDB taxon number: 37622
Alternative spelling: Cryptodiri
Full reference: E. D. Cope. 1868. On the origin of genera. Proceedings of the National Academy of Sciences 20:242-300
Parent taxon: Testudines according to J. R. Bourque et al. 2015
Sister taxa: Amphichelydia, Apertotemporalis, Apholidemys, Asturichelys, Casichelydia, Chelone obovata, Chelone sopita, Chelonipus, Cryptrodiramorpha, Entoplastrites, Euclastochelys, Euclastochelys interrupta, Haichemydidae, Larachelus, Meiolania damelipi, Odontochelys, Pancryptodira, Panpleurodira, Paracryptodira, Platychelone, Platychelone emarginata, Plesiochelydiae, Pleurodira, Podocnemis lata, Proganochelydia, Senonemys suemegensis, Sokotochelys, Tacuarembemys, Temnoclemmys cordiformis, Triassochelys, Trionychidae, Trionyx fuchienensis, Trionyx tshelkarensis, Protemys, Oligochelone, Chelycarapookidae, Padiochelys, Chelonoides, Pachychelys, Tomochelone, Yaxartemys, Glaucochelone, Halmyrachelidae, Pseudosphargis, Chelonichnium, Metachelydia, Marina, Terrestria, Cryptodiramorpha, Paludinosa, Fluvialia
Subtaxa: 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, Trionychoidea, Tritosternidae
Ecology: aquatic omnivore