Full reference: E. S. Gaffney. 1975. A taxonomic revision of the Jurassic turtles Portlandemys and Plesiochelys. American Museum Novitates 2574:1-19
Parent taxon: Testudines according to E. S. Gaffney et al. 2006
See also de Broin 1987, Gaffney 1975, Gaffney 1975, Gaffney 1975, Gaffney et al. 1998, Hirayama and Hikida 1998, Previtera and González Riga 2008 and Sullivan et al. 1988
Sister taxa: Amphichelydia, Apertotemporalis, Apholidemys, Asturichelys, Chelone obovata, Chelone sopita, Chelonipus, Cryptodira, Cryptrodiramorpha, Entoplastrites, Euclastochelys, Euclastochelys interrupta, Haichemydidae, Larachelus, Meiolania damelipi, Odontochelys, Pancryptodira, Panpleurodira, Platychelone, Platychelone emarginata, Plesiochelydiae, Pleurodira, Podocnemis lata, Proganochelydia, Senonemys suemegensis, Sokotochelys, Tacuarembemys, Temnoclemmys cordiformis, Triassochelys, Trionyx fuchienensis, Trionyx tshelkarensis, Halmyrachelidae, Pachychelys, Metachelydia, Oligochelone, Tomochelone, Padiochelys, Chelonoides, Glaucochelone, Pseudosphargis, Chelycarapookidae, Protemys, Therezinosaurus, Cryptodiramorpha, Fluvialia, Paludinosa, Terrestria, Marina
Subtaxa: none
Ecology:
Distribution: there are no occurrences of Casichelydia in the database