Parent taxon: Testudines according to E. A. Cadena and J. F. Parham 2015
See also Danilov and Parham 2008, Pérez-García 2012, Pérez-García et al. 2014, Pérez-García and Murelaga 2013, Pérez-García and Ortega 2011, Pérez-García and Ortega 2011 and Puntener et al. 2015
Sister taxa: Amphichelydia, Apertotemporalis, Apholidemys, Asturichelys, Casichelydia, Chelone obovata, Chelone sopita, Chelonipus, Cryptodira, Cryptrodiramorpha, Entoplastrites, Euclastochelys, Euclastochelys interrupta, Haichemydidae, Larachelus, Meiolania damelipi, Odontochelys, Panpleurodira, Platychelone, Platychelone emarginata, Plesiochelydiae, Pleurodira, Podocnemis lata, Proganochelydia, Senonemys suemegensis, Sokotochelys, Tacuarembemys, Temnoclemmys cordiformis, Triassochelys, Trionyx fuchienensis, Trionyx tshelkarensis, Terrestria, Fluvialia, Marina, Cryptodiramorpha, Paludinosa, Tomochelone, Padiochelys, Pseudosphargis, Therezinosaurus, Protemys, Metachelydia, Halmyrachelidae, Pachychelys, Chelycarapookidae, Chelonoides, Oligochelone, Glaucochelone
Subtaxa: Macrobaenidae Owadowia Thalassemydidae
Ecology:
Distribution:
• Eocene of United States (1: New Jersey collection)
• Clarkforkian of United States (4: Montana, South Carolina, Wyoming)
• Paleocene of Belgium (1), Canada (4: Alberta, Saskatchewan), France (2), Mongolia (1), United States (7: California, Colorado, Maryland, South Carolina)
• Cretaceous to Paleogene of United States (1: New Jersey)
• Cretaceous of Canada (4: Alberta, Nunavut, Saskatchewan), China (3), Kazakhstan (2), Kyrgyzstan (1), Mongolia (4), the Russian Federation (5), Slovenia (1), South Korea (1), Spain (3), Tajikistan (1), United States (19: Alabama, Maryland, Montana, New Jersey, North Dakota, South Carolina, South Dakota, Wyoming), Uzbekistan (6)
• Jurassic to Cretaceous of Thailand (1)
• Jurassic of China (1), France (2), Germany (2), Kazakhstan (1), Poland (1), the United Kingdom (1)
Total: 80 collections including 92 occurrences