Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates
     Class Reptilia Linnaeus, 1758 - reptiles
       Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Laurin 1991]
         Infraclass Archosauromorpha Huene, 1946 see Clade Archosauromorpha Huene 1946 [Gauthier, Kluge & Rowe 1988] {Laurin 1991}
           Superorder Archosauria Cope, 1869 - archosaurs see Clade Archosauria Cope 1869 [Gauthier & Padian 1985]
             Order †Herrerasauria Galton, 1985 see Order Saurischia Seeley, 1887
               Family †Herrerasauridae Benedetto, 1973
                 1 Genus †Herrerasaurus Reig, 1963
                 2 Genus †Ischisaurus Reig, 1963 see Genus Herrerasaurus Reig, 1963
                 3 Genus †Sinosaurus Young, 1948
                 4 Genus †Walkeria Chatterjee, 1986, nom. illeg. see Genus Alwalkeria Chatterjee & Creisler, 1994