After Hirayama, 1997, Moody, 1997, and Lapparent de Broin, 2000; with some fossil species and genera from the “Paleobiology Database”

<==o Cheloniidae Gray, 1825 sensu stricto (Hirayama, 1997) (Green turtles and relatives; merikilpikonnat)
   |?- †Bryochelys
   |?- †Carolinochelys wilsoni Hay, 1923
   |?- †Chelyopsis Smets, 1887
   |?- †Dacochelys Lydekker, 1889
   |?- †Glarichelys Zangerl, 1958
   |?- †Itilochelys rasstrigin Danilov, Averianov & Yarkov, 2010
   |?- †Kurobechelys tricarinata Shikama, 1956
   |?-o †Lembonax Cope, 1870
   |  |-- †L. polemicus Cope 1870
   |  `-- †L. propylaeus Cope 1872
   |?- †Miocaretta lankae Deraniyagala, 1967
   |?- †Protosphargis Capellini 1884
   |?-o †Tasbacka Nessov, 1987
   |  |-- †T. aldabergeni Nessov, 1987
   |  `-- †T. ouledabdounensis Tong and Hirayama 2002
   |-- †Allopleuron hoffmanni (Gray, 1831); U. Cret. WEu. [Allopleuroninae]
   `--+--o †Procolpochelys Hay, 1908
      |  |-- †P. grandaeva (Leidy, 1851) [Chelone grandaeva; Chelonia grandaeva]
      |  `-- †P. melii
      `--+?- †Platychelone emarginatus Dollo, 1909
         `--+?- †Glyptochelone suyckerbuykii (Ubaghs, 1879) Dollo, 1903; U. Cret. WEu.
            `--+?- †Eochelone brabantica Dollo, 1903; L. Eoc. [Eocheloniinae]
               |--+--o †Puppigerus Cope, 1870
               |  |  |-- †P. breviceps (Owen, 1842) [Chelone breviceps]
               |  |  |?- †P. camperi
               |  |  |?- †P. crassicostata
               |  |  |-- †P. grandaevus (Leidy, 1861)
               |  |  |-- †P. latiscutatus (Owen, 1842) [Chelone latiscutata]
               |  |  `-- †P. parvisecta (Cope, 1870) [Puppigerus parviscutum]
               |  `--o †Argillochelys Lydekker, 1889
               |     |-- †A. africana
               |     |-- †A. antiqua (Konig, 1825) [Chelone antiqua]
               |     |?- †A. athersuchii
               |     |-- †A. brachyceps (Owen, 1850( [Chelone brachyceps]
               |     |-- †A. convexa (Owen, 1842) [Chelone convexa; Puppigerus convexus; Chelone declivis Owen 1849]
               |     |-- †A. subcristata (Owen, 1842)
               |     `-- †A. cuneiceps (Owen, 1850)
               `--o “Cheloniinae” [Cheloniidae sensu stricto (Lynch & Parham, 2003)] (Recent seaturtles; nykymerikilpikonnat)
                  |?-o Caretta Rafinesque, 1814 (Loggerhead turtles; valekarettikilpikonnat) [taxonomic history]
                  |  |-- †C. patriciae Zug, 2001
                  |  `--o C. caretta (Linnaeus, 1758) (Loggerhead turtle; valekarettikilpikonna) [taxonomic history]
                  |     |-- C. c. caretta (Linnaeus, 1758) [taxonomic history]
                  |     `-- C. c. gigas Deraniyagala, 1933 [taxonomic history]
                  |--+-- Natator depressus (Garman, 1880) McCulloch, 1908 sensu Zangerl et al., 1988 (Australian sea turtle) [taxonomic history]
                  |  `--o †Syllomus Cope, 1896 [Peritresius Berry & Lynn, 1936] [Syllominae]
                  |     |-- †S. aegypticus (Lydekker, 1889) Lydekker, 1899 [Chelonia marylandica Collins & Lynn, 1936; Kurobechelys tricarinata Shikama, 1956; Peritresius virginianus Berry & Lynn, 1936]
                  |     `-- †S. crispatus Cope, 1896
                  `--o Chelonini
                     |--o Eretmochelys imbricata (Linnaeus, 1758) Agassiz, 1857 (Hawksbill turtle; karettikilpikonna) [taxonomic history]
                     |  |-- E. i. imbricata (Linnaeus, 1766) Mertens & Müller, 1928 (Atlantic Hawksbill turtle; atlantinkarettikilpikonna) [taxonomic history]
                     |  `-- E. i. bissa (Rüppell, 1835) Smith & Taylor 1950 (Pacific Hawksbill turtle; tyynenmerenkarettikilpikonna) [taxonomic history]
                     `--+--o Lepidochelys Girard, 1858? (Ridley's turtles; bastardikilpikonnat) [taxonomic history]
                        |  |-- L. kempi (Garman, 1880) (Atlantic Ridley; atlantinbastardikilpikonna) [taxonomic history]
                        |  `-- L. olivacea (Eschscholtz, 1829) (Pacific Ridley; tyynenmerenbastardikilpikonna) [taxonomic history]
                        `--o Chelonia mydas (Linnaeus, 1758) Schweigger, 1812 (Green turtle; liemikilpikonna) [taxonomic history]
                           |-- C. m. mydas (Linnaeus, 1758) ()? [taxonomic history]
                           |-- C. m. agassizi Bocourt, 1868; Stebbins, 1985 ()? [taxonomic history]
                           |?- C. m. japonica (Thunberg 1787) Gray 1831 ()? [taxonomic history]
                           `?- C. m. carrinegra [status unclear] [taxonomic history]

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