Phylum [Vertebrata] Lamarck, 1801 see Infraphylum Vertebrata Lamarck, 1801
Status: extant
   Class Reptilia Linnaeus, 1758 - reptiles
  Status: extant
     Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
    Status: extant
       Infraclass Archosauromorpha Huene, 1946 see Clade Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval.
      Status: extant
         Superorder Archosauria Cope, 1869 - archosaurs see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
        Status: extant
           Order †Saurischia Seeley, 1887 see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
          Status: fossil
             Suborder †Sauropodomorpha Huene, 1932 see Order Sauropodomorpha Huene, 1932
            Status: fossil
               Infraorder †Prosauropoda Huene, 1920 see Suborder Prosauropoda Huene, 1920
              Status: fossil
                 Family †Melanorosauridae von Huene, 1929
                Status: fossil
                   1 Genus †Riojasaurus Bonaparte, 1969
                  Status: fossil