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 A. G. J. Rhodin et al. 2017
See also Andrews 1906, Antunes and de Broin 1977, Averianov et al. 2008, Baur 1893, Bourque 2013, Bourque et al. 2015, Brinkman 2003, Brinkman et al. 2016, Cadena et al. 2017, Cadena et al. 2012, Carroll 1988, Case 1904, Collareta et al. 2020, Cope 1871, Cope 1875, Danilov and Parham 2008, Danilov et al. 2013, Danilov and Vitek 2013, de la Fuente et al. 1995, de Lapparent de Broin et al. 2020, Delair 1958, Estes 1964, Gadow 1898, Gaffney 1975, Gaffney 1975, Gaffney 1975, Gaffney 1996, Gaffney et al. 1992, Gaffney et al. 1998, Gaffney et al. 2006, Garcia et al. 2016, Haidr and Acosta Hospitaleche 2017, Hay 1902, Hay 1908, Hay 1930, Head et al. 2006, Hervet 2004, Hervet 2006, Hirayama and Hikida 1998, Holman and Case 1988, Hu et al. 2020, Huene 1954, Hutchison and Holroyd 2003, Hutchison et al. 2013, Jaekel 1911, Joyce 2007, Joyce and Lyson 2010, Joyce et al. 2004, Karl 1996, Karl 2007, Karl et al. 2012, Karl et al. 2006, Karl et al. 2012, Karl et al. 2012, Karl et al. 2012, Karl and Nyhuis 2012, Karl and Tichy 1999, Knauss et al. 2011, Köhler 1995, Kuhn 1946, Kuhn 1966, Lambe 1908, Lapparent de Broin 2002, Lydekker 1889, Lynch and Parham 2003, Megirian 1992, Meylan and Auffenberg 1986, Meylan and Sterrer 2000, Miller 1967, Nicholls 1988, Olson 1947, Osborn 1904, Parham 2005, Parham and Pyenson 2010, Parmley et al. 2006, Peng et al. 2001, Pérez-García and Murelaga 2013, Pérez-García et al. 2013, Pérez-García et al. 2008, Pérez-García and Ortega 2011, Pérez-García et al. 2017, Perrier 1928, Puntener et al. 2014, Roxo 1937, Staesche et al. 2007, Stefano 1903, Sullivan et al. 1988, Swinton 1934, Takahashi et al. 2013, Takahashi et al. 2003, Thurmond and Jones 1981, Tong et al. 2012, Turvey et al. 2017, van Dijk et al. 2014, Veress and Codrea 2020, Vlachos and Delfino 2016, Vlachos et al. 2014, Vlachos and Tsoukala 2014, Vlachos and Tsoukala 2016, Vremir 2013, Weems and George 2001, Woodward 1898, Zangerl 1960, Zittel 1890, Zverkov et al. 2023 and Zvonok and Danilov 2017
Sister taxa: Amphichelydia, Apertotemporalis, Apholidemys, Asturichelys, Casichelydia, Chelone obovata, Chelone sopita, Chelonipus, 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, Terrestria, Paludinosa, Cryptodiramorpha, Marina, Fluvialia, Oligochelone, Glaucochelone, Pseudosphargis, Chelycarapookidae, Pachychelys, Padiochelys, Metachelydia, Tomochelone, Protemys, Halmyrachelidae, Chelonoides, Therezinosaurus
Subtaxa: Adocusia Bashuchelyidae Carettochelyoidea Charitonyx tajanikolaevae Chelonemydidae Chelonioidea Chelydridae Chelydroidea Chersidae Chitracephalus Cryptoderinea Dermatochelydidae Dermochelyoidea Durocryptodira Eucryptodira Galvechelone Glyptopidae Glyptopsidae Indochelyidae Kallokibotioninae Kayentachelyidae Kinosternia Kinosternoidae Meiolanidae Nanhsiungchelyidae Panchelonioidea Pantestudinoidea Pantrionychia Platysternoidea Polysternum Selmacryptodira Trionychia Trionychidae Trionychoidea Tritosternidae