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]
                       †Troodontidae Gilmore 1924 [Varricchio 1997] see Family Troodontidae Gilmore, 1924
                         †Jinfengopteryginae Turner et al. 2012
                         1 Genus †Jinfengopteryx Ji Q., Ji S., Lü, You, Chen W., Liu Y.Q. & Liu Y.X., 2005
                         2.1.1 Genus †Mei Xu & Norell, 2004
                         2.1.2 Genus †Sinovenator Xu, Norell, Wang, Makovicky & Wu, 2002
                         2.2.1 Genus †Byronosaurus Norell, Makovicky & Clark, 2000
                         2.2.2.1 Genus †Sinornithoides Russell & Dong, 1993
                         2.2.2.2.1 Genus †Gobivenator Tsuihiji, Barsbold, Watabe, Tsogtbaatar K., Tsogtbaatar C., Fujiyama & Suzuki, 2014
                         2.2.2.2.2.1 Genus †Troodon Leidy, 1856, nom. dub.
                         2.2.2.2.2.2.1 Genus †Saurornithoides Osborn, 1924
                         2.2.2.2.2.2.2 Genus †Zanabazar Norell, Makovicky, Bever, Balanoff, Clark, Barsbold & Rowe, 2009