Subclass Avialae Gauthier, 1986 see Clade Avialae Gauthier 1986
   Infraclass Aves Linnaeus, 1758 see Class Aves Linnaeus, 1758
     Parvclass †Palaeoaves Livezey & Zusi, 2007 see Class Aves Linnaeus, 1758
       Superorder †Euenantiornithes Chiappe, 2002
         1 Order †Rahonaviformes B.C. Livezey & R.L. Zusi, 2007 see Cohort Deinonychosauria Colbert & Russell, 1969
         2 Order †Apsaraviformes Livezey & Zusi, 2007