After Hirayama, 1997, 1998, Lapparent de Broin, 2000, and Parham, 2005

<==o “Chelonioinea” [Cheloniidae Gray, 1825 sensu Hirayama, 1997; Pancheloniidae Joyce, Parham & Gauthier, 2004] (chelonians, seaturtles; merikilpikonnat)
   |--o †Toxochelyidae Baur, 1895 emend. Zangerl, 1953
   |  |?- †Toxochelyidae genera indet. [Bantuchelys (Dollo, 1924, ex parte;)]
   |  |--o †Toxochelyinae Zangerl, 1953
   |  |  `--o †Toxochelys Cope, 1873; U.Cret. NA.
   |  |     |-- †T. latiremis Cope, 1873 [taxonomic history]
   |  |     `-- †T. moorevillensis Zangerl, 1953
   |  `--o †“Thinochelyinae”
   |     |?- †Catapleura repanda (Cope, 1868) [Toxochelys atlantica Zangerl, 1953]
   |     |?- †Dollochelys
   |     `--+-- †Porthochelys laticeps Williston, 1901
   |        `-- †Thinochelys lapisossea Zangerl, 1953
   `--o Cheloniidae Gray, 1825 sensu lato
      |?- †“Thalassochelys” libyca Andrews, 1901
      |?- †“Thalassochelys” phosphatica De Stefano, 1903 [is a Bothremyid pleurodire]
      |?- †“Trachyaspis” cf. T. aegyptiana Lydekker, 1889
      |?- †Trachyaspis aegyptiana Lydekker, 1889 [Syllomus Cope, 1896]
      |?- †“Euclastes” douvillei De Stefano, 1902
      |?- †Tasbacka aldabergeni Nessov, 1987
      |?- †Itilochelys rasstrigin Danilov, Averianov & Yarkov, 2010, E.Pal. EEu.
      |--+-- †Ctenochelys stenoporus (Hay, 1905); U. Cret. NA. WEu. [taxonomic history]
      |  `--+-- †Prionochelys nauta Zangerl, 1953 [?P. matuina Zangerl, 1953; P. galeotergum Zangerl, 1953]
      |     `-- †Peritresius ornatus (Leidy, 1856) [Taphrosophys nodosus Cope, 1870]
      `--+?- †“Catapleura” arcansaw Schmidt, 1944; U. Cret. NA.
         |--o †Euclastes Cope, 1867 [Osteopygidae sensu Hirayama, 1997] [taxonomic history]
         |  |-- †E. platyops Cope, 1867 [taxonomic history]
         |  |-- †E. wielandi (Hay, 1908) [taxonomic history]
         |  |-- †E. gosseleti (Dollo, 1886) [taxonomic history]
         |  |-- †E. meridionalis (de la Fuente & Casadío, 2000) [taxonomic history]
         |  |-- †E. planimenta (Owen, 1842) [taxonomic history]
         |  |-- †E. roundsi (Weems, 1988) [taxonomic history]
         |  `-- †E. hutchisoni Lynch & Parham, 2003 [taxonomic history]
         `--+-- †Allopleuron hoffmanni (Gray, 1831); U.Cret. WEu.
            `--+-- †Procolpochelys melii
               `--+?- †Platychelone emarginatus
                  `--+?- †Glyptochelone suyckerbuykii (Ubaghs, 1879); U.Cret. WEu.
                     `--+?- †Eochelone brabantica Dollo, 1903; E.Eoc.
                        |--+--o †Puppigerus Cope, 1871
                        |  |  |-- †P. camperi (Gray, 1831)
                        |  |  `-- †P. crassicostata
                        |  `--o †Argillochelys Lydekker, 1889
                        |     |?- †A. africana Tong & Hirayama, 2008
                        |     |-- †A. cuneiceps (Owen, 1849)
                        |     |-- †A. antiqua
                        |     `-- †A. athersuchii
                        `--o Cheloniidae Gray, 1825 sensu stricto (modern seaturtles; nykymerikilpikonnat)
                           |?-o Caretta Stejneger, 1904 (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]
                           |--+-- †Syllomus aegypticus
                           |  `-- Natator depressus (Garman, 1880) McCulloch, 1908 sensu Zangerl et al., 1988 (Australian seaturtle) [taxonomic history]
                           `--o Chelonini
                              |--o Eretmochelys imbricata (Linnaeus, 1758) Agassiz, 1857 (Hawksbill turtle; karettikilpikonna)
                              |  |-- E. i. imbricata (Linnaeus, 1766) Mertens & Müller, 1928 (Atlantic Hawksbill turtle; atlantinkarettikilpikonna)
                              |  `-- E. i. bissa (Rüppell, 1835) Smith & Taylor 1950 (Pacific Hawksbill turtle; tyynenmerenkarettikilpikonna)
                              `--+--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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