Reptilia Linnaeus 1758 [Gauthier 1984], nom. cl. inval. see Clade Reptilia Linnaeus 1758 [Laurin & Reisz 2020]
   †Parareptilia Olson 1947 [deBraga & Reisz 1996] see Subclass Parareptilia Olson, 1947
     1 †Mesosauridae Baur, 1889 - mesosaurs
     2.1 †Millerosauria see Order Millerosauria Watson, 1957
     2.2 †Procolophonomorpha Romer, 1964 see Order Procolophonomorpha Romer, 1964