Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
   Theropoda Marsh 1881 [Gauthier 1986] see Clade Theropoda Marsh 1881 [Naish, Cau, Holtz Jr., Fabbri & Gauthier 2020]
     Coelurosauria Huene 1914 [Gauthier 1986]
       †Alvarezsauria Bonaparte 1991
         1 †Alvarezsauridae Bonaparte 1991 [Sereno 1999] see Family Alvarezsauridae Bonaparte, 1991
         2 Oofamily †Arriagadoolithidae Kundrát, Novas, Agnolin & Powell, 2011