Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval. see Clade Archosauromorpha von Huene 1946 [Gauthier 2020]
Count: [*†*] 2g;2s; †68g;74s
   Archosauriformes Gauthier 1994, nom. cl. inval. see Clade Archosauriformes Gauthier 1994 [Gauthier 2020]
  Count: [*†*] 2g;2s; †66g;72s
     Crurotarsi Sereno & Arcucci 1990
    Count: [*†*] 2g;2s; †60g;66s
       Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval. see Clade Archosauria Cope 1869 [Gauthier & Padian 2020]
      Count: [*†*] 2g;2s; †57g;63s
         Pseudosuchia Zittel 1887-1890 [Gauthier & Padian 1985]
        Count: [*†*] 1g;1s; †31g;36s
           Suchia Krebs 1974 [Sereno 1991]
          Count: [*†*] 1g;1s; †29g;34s
             †Aetosauria Marsh 1884 [Heckert & Lucas 2000] see Order Aetosauria Nicholson & Lydekker, 1889
            Count: [†*] †3g;3s
               Genus †Stagonolepis Agassiz, 1845
              Count: [†*] †1s
                 1 †Stagonolepis robertsoni Agassiz, 1844
                Count: -