Order †Parareptilia (Lawrence, 1868) see Subclass Parareptilia Olson, 1947
   †Pareiasauromorpha Tsuji, Müller & Reisz 2012
     Suborder †Pareiasauria Seeley, 1888
       1 †Bradysaurus seeleyi Haughton & Boonstra, 1929
       2.1 †Bradysaurus baini (Seeley, 1892)
       2.2 Genus †Nochelesaurus Haughton, 1929
       2.3.1 Genus †Embrithosaurus Watson, 1914
       2.3.2.1 Genus †Bunostegos Sidor, Blackburn & Gado, 2003
       2.3.2.2.1 Genus †Deltavjatia Lebedev, 1987
       2.3.2.2.2 Genus †Parasaurus Marsh, 1893
       2.3.2.2.3 Genus †Honania Young, 1979, nom. illeg.
       2.3.2.2.4.1 Genus †Pareiasaurus Owen, 1876
       2.3.2.2.4.2 Genus †Sanchuansaurus Gao, 1989
       2.3.2.2.4.3 Genus †Scutosaurus Hartmann-Weinberg, 1930
       2.3.2.2.4.4 Family †Elginiidae Cope, 1895
       2.3.2.2.5 Genus †Pareiasuchus Broom & Haughton, 1913
       2.3.2.2.6.1.1 Genus †Shihtienfenia Young & Yeh, 1963
       2.3.2.2.6.1.2 Genus †Shansisaurus Cheng, 1980
       2.3.2.2.6.1.3 Genus †Huanghesaurus Gao, 1983
       2.3.2.2.6.2 Genus †Nanoparia Broom, 1936
       2.3.2.2.6.3 †Pumiliopareiasauria Jalil & Janvier 2005