Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval. see Clade Archosauromorpha von Huene 1946 [Gauthier 2020] Archosauriformes Gauthier 1994, nom. cl. inval. see Clade Archosauriformes Gauthier 1994 [Gauthier 2020] Crurotarsi Sereno & Arcucci 1990 Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval. see Clade Archosauria Cope 1869 [Gauthier & Padian 2020] Pseudosuchia Zittel 1887-1890 [Gauthier & Padian 1985] Suchia Krebs 1974 [Sereno 1991] †Aetosauria Marsh 1884 [Heckert & Lucas 2000] see Order Aetosauria Nicholson & Lydekker, 1889 1 Genus †Aetosaurus Fraas, 1877 2.1 Genus †Stagonolepis Agassiz, 1845 2.2 Genus †Longosuchus Hunt & Lucas, 1990