After Tsuji & Müller, 2009

<==o Procolophonomorpha Romer, 1964 sensu Lee, 1995 [Ankyramorpha deBraga & Reitz, 1996]
   |?- †Australothyris smithi Modesto, Scott & Reisz, 2009; M.Per. SAf.
   `--+-- †Procolophonoidea Romer, 1956 [Procolophonia Seeley, 1888; Procolophoniformes Lee, 1995]
      `--+--o †Nycteroleteridae Romer, 1956 [incl. Rhipaeosauridae Chudinov, 1955]
         |  |-- †Leptoropha novojilovi Chudinov, 1955
         |  |-- †Macroleter poezicus Tverdochlebova & Ivachnenko, 1984
         |  |--o †Rhipaeosaurus Efremov, 1940
         |  |  |-- †R. talonophorus Chudinov, 1955
         |  |  `-- †R. tricuspidens Efremov, 1940
         |  `--+-- †Bashkyroleter bashkyricus (Efremov, 1940) Ivakhnenko, 1997 [=? Nycteroleter bashkyricus]
         |     |--o †Nycteroleter Efremov, 1938
         |     |  |-- †N. kassini Tchudinov, 1955
         |     |  |-- †N. ineptus Efremov, 1938
         |     |  `-- †N. ultimus Tchudinov &: Vjuschkov, 1955
         |     `--+-- †“Bashkyroletermesensis Ivakhnenko, 1997
         |        `-- †Emeroleter levis Ivakhnenko, 1997
         `-- †Pareiasauria Seeley, 1888 sensu Tsuji & Müller, 2009 [Hallucicrania Lee, 1995; Pareiasauriformes Lee, 1996]

After Lee, 1993, 1996, 1997, and Debraga & Reisz, 1996

<==o Procolophonomorpha
   |?- †Australothyris
   |--o †Lanthanosuchoidea
   |  |--o †Acleistorhinidae
   |  |  |?- †Colobomycter
   |  |  `-- †Acleistorhinus
   |  `--o †Lanthanosuchidae
   |     |-- †Lanthaniscus
   |     |-- †Lanthanosuchus
   |     `-- †Chalcosaurus
   `--o Procolophonomorpha
      |--o †Nyctiphruretia
      |  |?- †Tokosaurus
      |  |-- †Nyctiphruretus
      |  `--o †Nycteroleteridae
      |     |?- †Rhipaeosaurus
      |     |-- †Nycteroleter
      |     `-- †Macroleter
      `--o Procolophonia
         |-- †Procolophonoidea Romer, 1956
         `-- Hallucicrania

Procolophonomorpha after Modesto, Scott & Reisz, 2009:

<==o Procolophonomorpha
   |-- †Australothyris smithi
   `--o †Ankyramorpha
      |-- †Lanthanosuchoidea
      `--+-- †Bolosauridae
         |-- †Nyctiphruretia
         `--+-- †Nyctiphruretia
            `-- Procolophonia Seeley, 1888 [incl. Testudinata?]

Reference(s):