Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
   Saurischia Seeley 1887 [Gauthier 1986], nom. cl. inval. see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
     Theropoda Marsh 1881 [Gauthier 1986] see Clade Theropoda Marsh 1881 [Naish, Cau, Holtz Jr., Fabbri & Gauthier 2020]
       Neotheropoda Bakker 1986 [Sereno 1998]
         Tetanurae Gauthier 1986
           Neotetanurae Sereno et al. 1994 see Clade Avetheropoda Paul 1988 [Padian et al. 1999]
             Coelurosauria Huene 1914 [Gauthier 1986]
               Maniraptoriformes Holtz 1995 [Holtz 1996]
                 †Ornithomimosauria Barsbold 1976 [Osmólska 1997]
                   †Ornithomimidae Marsh 1890 [Sereno 1998] see Family Ornithomimidae Marsh, 1890
                     1 Genus †Harpymimus Barsbold & Perle, 1984
                     2 Genus †Pelecanimimus Pérez-Moreno, Sanz, Buscalioni, Moratalla, Ortega & Rasskin-Gutman, 1994
                     3 †Ornithomiminae Nopcsa 1923