Theropoda Marsh 1881 [Gauthier 1986] see Clade Theropoda Marsh 1881 [Naish, Cau, Holtz Jr., Fabbri & Gauthier 2020]
   Neotheropoda Bakker 1986 [Sereno 1998]
     Averostra Paul 2002
       Tetanurae Gauthier 1986
         Orionides Carrano, Benson & Sampson 2012
           Avetheropoda Paul 1988 [Padian et al. 1999]
             Coelurosauria Huene 1914 [Gauthier 1986]
               Maniraptoriformes Holtz 1995 [Holtz 1996]
                 Maniraptora Gauthier 1986
                   Pennaraptora Foth et al. 2014
                     Paraves Sereno 1997 [Sereno 1998]
                       Avialae Gauthier 1986
                         1.1 Genus †Xiaotingia Xu, You, Du & Han, 2011
                         1.2.1 Genus †Anchiornis Xu, Zhao, Norell, Sullivan, Hone, Erickson, Wang, Han & Guo, 2009
                         1.2.2 Genus †Eosinopteryx Godefroit, Demuynck, Dyke, Hu, Escuillié & Claeys, 2013
                         2.1 Genus †Archaeopteryx Meyer, 1861
                         2.2 Aves Linnaeus 1758 [Gauthier 1986], nom. cl. inval. see Subclass Aves Linnaeus, 1758