Parent taxon: Testudines according to E. S. Gaffney et al. 2006
See also Carroll 1988 and Gaffney 1975
Sister taxa: Amphichelydia, Apertotemporalis, Apholidemys, Asturichelys, Casichelydia, 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, Senonemys suemegensis, Sokotochelys, Tacuarembemys, Temnoclemmys cordiformis, Triassochelys, Trionyx fuchienensis, Trionyx tshelkarensis, Chelycarapookidae, Therezinosaurus, Metachelydia, Tomochelone, Halmyrachelidae, Pachychelys, Pseudosphargis, Glaucochelone, Padiochelys, Chelonoides, Oligochelone, Protemys, Paludinosa, Terrestria, Cryptodiramorpha, Fluvialia, Marina
Subtaxa: Proganochelyidae
Ecology:
Distribution: found only at Heroldsberg, Feuerletten (Triassic of Germany)