reptiles Linnaeus 1758 [Laurin & Reisz 2020] see Class Reptilia Linnaeus, 1758
   Pan-Archosauria Gauthier 2020
     Crocopoda Ezcurra 2016
       Archosauriformes Gauthier 1994 [Gauthier 2020]
         Eucrocopoda Ezcurra 2016
           Archosauria Cope 1869 [Gauthier & Padian 2020]
             Pan-Aves Gauthier & de Queiroz 2001 [M. Ezcurra, S. Nesbitt, M. Bronzati, F. Dalla Vecchia, F. Agnolin, R. Benson, ..., M. Langer 2020]
               1 †Aphanosauria Nesbitt et al. 2017
               2 Ornithodira Gauthier 1986 [M. Ezcurra, S. Nesbitt, M. Bronzati, F. Dalla Vecchia, F. Agnolin, R. Benson, ..., M. Langer 2020]