After Meylan & Ganko, 1997, Lyson & Joyce, 2010, and Lyson & Joyce, 2011

<==o †Paracryptodira [=? Pleurosternoidea Hay, 1930]
   |?-o †Solemydidae de Lapparent de Broin & Murelaga, 1996
   |  |?- †Plastremys lata Owen, in Parkinson, 1881 [Hylaeochelys lata (Owen) Milner, 2004]
   |  |--o †Helochelydra Nopcsa, 1928 [=? †Helochelys]
   |  |  |-- †H. nopcsai de Lapparent de Broin & Murelaga, 1999
   |  |  |-- †H. bakewelli (Mantell, 1833) Milner, 2004
   |  |  `-- †H. anglica (Lydekker, 1889b) Milner, 2004
   |  |-- †Naomichelys speciosa Hay, 1908
   |  `-- †Solemys vermiculata de Lapparent de Broin and Murelaga 1996
   |--o †Pleurosternidae Cope, 1868 [incl. ?Chengyuchelyidae Yeh, 1990]
   |  |?-o †Chengyuchelys Young & Chow, 1953 [Chengyuchelyidae Yeh, 1990]
   |  |  |-- †C. baenoides Young & Chow, 1953
   |  |  `-- †C. zigongensis Yeh 1982
   |  |-- †Dorsetochelys delairi Evans & Kemp, 1976 [Cryptodira incertae sedis (Milner, 2004)]
   |  |?- †Uluops uluops Bakker, 1990
   |  |--o †Pleurosternon Owen, 1853 [taxonomic history]
   |  |  |-- †P. bullockii (Owen, 1842) Lydekker & Boulenger, 1887 [taxonomic history]
   |  |  `-- †P. portlandicum Lydekker, 1889
   |  |?-o †Compsemys Leidy, 1856; E.Cret.-Pal. NAm. Eu.
   |  |  |-- †C. bakewelli (Mantell, 1833) [Helochelydra bakewelli; Tretosternum bakewelli; Trionyx bakewelli]
   |  |  `-- †C. victa Leidy, 1856 [Compsemys obscura Leidy, 1856; Compsemys parva Hay, 1910; Compsemys puercensis Gilmore, 1919; Compsemys torrejonensis Gilmore, 1919; Compsemys vafer Hay, 1910; Emys obscurus Leidy, 1856; Glyptops depressus Hay, 1908]
   |  `--+--o †“Glyptopsinae” Marsh, 1890 [Glyptopsidae Marsh, 1890]
   |     |  |?- †Mesochelys durlstonensis Evans & Kemp, 1975 [treated as a synonym of Pleurosternon by Milner (2004)]
   |     |  `--o †Glyptops Marsh, 1890 [taxonomic history]
   |     |     |?- †“Glyptopstypocardium (Seeley, 1869) Milner, 2004 [taxonomic history]
   |     |     |-- †G. plicatulus (Cope, 1877) Marsh, 1890 [taxonomic history]
   |     |     `-- †G. ruetimeyeri (Lydekker, 1889b) [taxonomic history]
   |     `--o †“Dinochelinae”
   |        |-- †Desmemys bertelsmanni Wegner, 1911
   |        `-- †Dinochelys whitei Gaffney, 1979
   `--o †Baenoidea [Baenidae sensu lato] [paraphyletic??]
      |?- †Macrobaenidae Sukhanov, 1964
      `--o †Baenidae Cope, 1882 sensu stricto
         |?- †Goleremys mckennai Hutchison, 2005
         |-- †Arundelemys dardeni Lipka, Therrien, Weishampel, Jamniczky, Joyce, Colbert & Brinkman, 2006
         `--+-- †Trinitichelys hiatti Gaffney, 1972
            `--+--o †Neurankylus Lambe, 1902 [Charitemys Hay, 1908] [Neurankylidae]
               |  |-- †N. eximius Lambe, 1902 [Baena fluviatilis Parks 1933; Charitemys captans Hay, 1908; Neurankylus baueri Gilmore, 1916; Thescelus fluviatilis Parks, 1933]
               |  `-- †N. wyomingensis Gilmore, 1919
               `--+-- †Hayemys latifrons Gaffney, 1972
                  |-- †Thescelus insiliens Hay, 1908 [Baena longicauda Russell, 1934; Thescelus hemispherica Gilmore, 1935; Thescelus rapiens Hay, 1908]
                  |-- †“Denazinemysornata (Gilmore, 1935) Lucas & Sullivan, 2006 [Baena ornata Gilmore, 1935]
                  `--o †Baenodda Gaffney & Meylan, 1988 [Eubaeninae]
                     |?- †“Baenahatcheri Hay, 1901
                     |?- †“Baenamarshi Hay, 1904
                     |--+-- †“Baenahayi Gilmore, 1916
                     |  `--+--o †Plesiobaena Gaffney, 1972
                     |     |  |-- †P. antiqua (Lambe, 1902) [Baena antiqua Lambe, 1902; Baena antiqua Lambe; Russell, 1934; Plesiobaena antigua (Lambe); Gaffney, 1972 (in partim)]; U. Cret. NA.
                     |     |  `--+-- †P. sp. U. Cret. NA. [Maastrichian species (Brinkman, 2003)]
                     |     |     `-- †P. putorius Gaffney, 1972; Pal. NA. [=? Cedrobaena putorius]
                     |     `--+-- †Peckemys brickman
                     |        `--+-- †Cedrobaena putorius [=? Plesiobaena putorius Gaffney, 1972]
                     |           `--+-- †Gamerabaena sonsalla Lyson & Joyce, 2010
                     |              `--o †Palatobaena
                     |                 |-- †P. cohen Lyson & Joyce, 2009
                     |                 `--+-- †P. gaffneyi
                     |                    `-- †P. bairdi
                     `--+--+-- †Stygiochelys estesi Gaffney & Hiatt, 1971
                        |  `--+-- †Baena arenosa Leidy, 1890
                        |     `--o †Chisternon Leidy, 1872
                        |        |-- †C. undatum (Leidy, 1871)
                        |        `-- †C. hebraicum Cope 1872
                        `--+-- †Eubaena cephalica (Hay, 1904) Hay, 1908 [Baena cephalica Hay, 1904]
                           `--+-- †Denazinemys nodosa (Gilmore, 1916) Lucas & Sullivan, 2006 [Baena nodosa Gilmore, 1916]
                              `--o †Boremys Lambe, 1906
                                 |-- †B. pulchra Lambe, 1906
                                 `-- †B. grandis Gilmore, 1935

After Lyson & Joyce, 2011

<==o †Paracryptodira
   |-- †Dinochelys whitei
   `--+-- †Compsemys victa
      `--+-- †Uluops uluops
         |--o †Pleurosternidae
         |  |-- †Dorsetochelys delairi
         |  `--+-- †Pleurosternon
         |     `-- †Glyptops
         `--o †Baenidae
            |-- †Arundelemys dardeni
            `--+-- †Trinitichelys hiatti
               `--+-- †Neurankylus eximius
                  `--+-- †Hayemys latifrons
                     |-- †“Denazinemysornata
                     |--+--+-- †Stygiochelys estesi
                     |  |  `--+-- †Baena arenosa
                     |  |     `-- †Chisternon undatum
                     |  `--+-- †Eubaena cephalica
                     |     `--+-- †Denazinemys nodosa
                     |        `--o †Boremys
                     |           |-- †B. pulchra
                     |           `-- †B. grandis
                     `--+-- †Plesiobaena antiqua
                        `--+-- †Peckemys brickmani
                           `--+-- †Cedrobaena putorius
                              `--+-- †Gamerabaena sonsalla
                                 `--o †Palatobaena
                                    |-- †P. cohen
                                    `--+-- †P. gaffneyi
                                       `-- †P. bairdi

Reference(s):

  • Lyson, T. R. & Joyce, W. G., 2011: Cranial Anatomy and Phylogenetic Placement of the Enigmatic Turtle Compsemys victa Leidy, 1856.
    –Journal of Paleontology: Vol. 85, #4, pp. 789-801 [doi: 10.1666/10-081.1]

After Lyson & Joyce, 2010

<==o †Paracryptodira
   |-- †Pleurosternon
   |-- †Glyptops
   `--o †Baenidae
      |--+-- †Trinitichelys hiatti
      |  `-- †Neurankylus eximius
      `--+-- †Thescelus insiliens
         |-- †Hayemys latifrons
         `--o †Baenodda
            |--+-- †“Baenahayi
            |  `--+-- †Plesiobaena antiqua
            |     `--+-- †Gamerabaena sonsalla
            |        `--o †Palatobaena
            |           |-- †P. cohen
            |           `--+-- †P. gaffneyi
            |              `-- †P. bairdi
            `--+--+-- †Boremys pulchra
               |  |-- †Boremys grandis
               |  |-- †Eubaena cephalica
               |  `-- †“Baenahatcheri
               `--+-- †Stygiochelys estesi
                  `--+-- †Baena arenosa
                     `-- †Chisternon undatum

Reference(s):

  • Lyson, T. R. & Joyce, W. G., 2010: A new baenid turtle from the upper Cretaceous (Maastrichtian) Hell Creek Formation of North Dakota and a preliminary taxonomic review of Cretaceous Baenidae.
    –Journal of Vertebrate Paleontology: Vol. 30, #2, pp. (394-402) [doi: 10.1080/02724631003618389]

After Lipka, Therrien, Weishampel, Jamniczky, Joyce, Colbert & Brinkman, 2006

<==o †Paracryptodira
   |-- †Arundelemys dardeni
   `--+--o †Pleurosternidae
      |  |-- †Pleurosternon
      |  `--+-- †Glyptops
      |     `-- †Dinochelys whitei
      `--o †Baenidae
         |-- †Neurankylus eximius
         `--+-- †Trinitichelys hiatti
            `--+-- †Plesiobaena antiqua
               `--+-- †Boremys pulchra
                  `--+-- †Baena arenosa
                     `-- †Chisternon undatum

Reference(s):

  • Lipka, T. R., Therrien, F., Weishampel, D. B., Jamniczky, H. A., Joyce, W. G., Colbert, M. W. & Brinkman, D. B., 2006: A new turtle from the Arundel clay facies (Potomac Formation, Early Cretaceous) of Maryland, U.S.A.
    –Journal of Vertebrate Paleontology: Vol. 26, #2, pp. 300-307 [doi: 10.1671/0272-4634(2006)26[300:antfta]2.0.co;2]

Reference(s):