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 Fitzinger, 1843
             †Piatnitzkysauridae Carrano, Benson & Sampson, 2012
               Genus †Marshosaurus Madsen, 1976
                 1 †Marshosaurus bicentesimus Madsen, 1976