[Archosauromorpha] Huene 1946 [Benton 1985], nom. cl. inval. see Clade Archosauromorpha von Huene 1946 [Gauthier 2020]
   Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval. see Clade Archosauria Cope 1869 [Gauthier & Padian 2020]
     Genus †Effigia Nesbitt & Norell, 2006
       †Effigia okeeffeae Nesbitt & Norell, 2006