Diapsida Osborn 1903 [Laurin 1991] see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020] Count: - Archosauromorpha xxxHuene 1946 [Gauthier, Kluge & Rowe 1988] see Clade Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval. Count: - Archosauria Cope, 1869 Count: - Crocodylotarsi Benton & Clark, 1988 see Clade Crurotarsi Sereno & Arcucci 1990 Count: - Suchia Krebs 1974 [Sereno 1991] Count: - †Pseudosuchia Zittel 1887-1890 [Gauthier & Padian 1985] Count: - †Rauisuchia Bonaparte, 1982 - rauisuchians Count: †2f ?Family †[Poposauridae] Nopcsa, 1923 - poposaurids Count: -