Diapsida Osborn 1903 [Laurin 1991]
   Archosauromorpha Huene 1946 [Gauthier, Kluge & Rowe 1988] see Clade Archosauromorpha Huene 1946 [Gauthier, Kluge & Rowe 1988] {Laurin 1991}
     Archosauria Cope, 1869
       Ornithosuchia see [unranked] Avesuchia Benton, 1999
         Ornithodira Gauthier 1986
           Dinosauria Owen 1841
             Saurischia Seeley 1887 [Gauthier 1986]
               Theropoda Marsh 1881 [Gauthier 1986]
                 Tetanurae Gauthier 1986
                   Coelurosauria Huene 1914 [Gauthier 1986]
                     Maniraptora Gauthier 1986
                       Aves Linnaeus 1758 [Gauthier 1986], nom. cl. inval. see Class Aves Linnaeus, 1758