After Berman et al., 2000, Lee, 1993, 1996, and Modesto 1999, 2000

<==o Anapsida [Proganosauria]
   |?- †Microleter mckinzieorum Tsuji, Müller & Reisz, 2010
   |--o †Mesosauridae Baur, 1889
   |  |-- †Brazilosaurus sanpauloensis Shikama & Ozaki, 1966
   |  |-- †Stereosternum tumidum Cope, 1886
   |  `-- †Mesosaurus tenuidens Gervais, 1864-66 [Noteosaurus africanus Broom, 1913; Notosaurus; Mesosaurus brasiliensis McGregor, 1908; Ditrochosaurus capensis Gurich, 1889; Mesosaurus capensis (Gurich, 1889)]
   `--o Parareptilia Olson, 1947 sensu deBraga & Reisz, 1996
      |?- †Kinelia broomi Bulatov, 2002
      |--o †Millerettidae Watson, 1957 [Millerosauria, Millerosauroidea]
      |  |-- †Broomia perplexa Watson, 1914
      |  |?- †Heleophilus Broom, 1909
      |  |-- †Milleretta rubidgei Broom, 1948 [Millerina rubidgei; Millerettoides platyceps Broom, 1948; Millerettops kitchingi Broom, 1948]
      |  |-- †Milleropsis pricei Watson, 1957 [Millerosaurus pricei]
      |  |--o †Millerosaurus Broom, 1948
      |  |  |-- †M. nuffieldi Broom, 1948
      |  |  `-- †M. ornatus Broom, 1948
      |  `-- †Nanomilleretta kitchingi Broom & Robinson, 1948
      `--+--o †Bolosauridae Cope, 1878 sensu Berman et al., 2000
         |  |?- †Bolosauridae genera et species indet. [China]
         |  |--o †Bolosaurus Cope, 1878; L. Perm. NA.
         |  |  |?- †B. major
         |  |  |?- †B. rapidens
         |  |  |-- †B. striatus Cope, 1878
         |  |  `-- †B. grandis Reisz, Barkas & Scott, 2002
         |  |-- †Eudibamus cursoris Berman et al., 2000, L. Perm. CEu.
         |  `--o †Belebay U. Perm. EEu.
         |     |-- †B. vegrandis
         |     `-- †B. maximi
         `--+-- †Eunotosaurus africanus Seeley, 1892 sensu Modesto, 2000
            `-- Procolophonomorpha Romer, 1964 sensu Lee, 1995 [Ankyramorpha deBraga & Reitz, 1996]

Parareptilia incertae sedis:

Delorhynchus priscus Fox, 1962

After Bever, Lyson, Field & Bhullar, 2015:

<==o Parareptilia
   |--+--+-- †Microleter
   |  |  `-- †Australothyris
   |  `--+-- †Mesosauridae
   |     `--o †Bolosauridae
   |        |-- †Eudibamus
   |        `-- †Belebay
   `--+-- †Millerettidae
      `--o Procolophonomorpha
         |--+-- †Delorhynchus
         |  `--+-- †Acleistorhinus
         |     `--+-- †Colobomycter
         |        `-- †Feeserpeton
         `--+-- †Lanthanosuchus
            `--+-- †Nyctiphruretus
               `--+-- †Rhipaeosaurus 
                  `--+-- †Macroleter
                     |--+-- †Emeroleter
                     |  `--+-- †“Bashkyroletermesensis
                     |     `--+-- †Nycteroleter
                     |        `-- †Bashkyroleter
                     `--+-- †Procolophonoidea
                        `-- †Pareiasauria

Reference(s):

  • Bever, G. S., Lyson, T. R., Field, D. J. & Bhullar, B.-A. S., 2015: Evolutionary origin of the turtle skull.
    –Nature: in press [doi: 10.1038/nature14900]

Reference(s):