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
           †Megalosauroidea Walker 1964 [Sereno 1998] see Superfamily Megalosauroidea Fitzinger, 1843
             †Megalosauria Bonaparte 1850 [Allain et al. 2012]
               †Megalosauridae Bonaparte 1850 [Allain 2002] see Family Megalosauridae Fitzinger, 1843
                 †Megalosaurinae Paul 1988 [Carrano et al. 2012] see Subfamily Megalosaurinae Fitzinger, 1843