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
       †Ceratosauria Marsh 1895 [Rowe & Gauthier 1990]
         †Neoceratosauria Novas 1991 [Holtz 1994]
           †Ceratosauridae Marsh 1884 [Rauhut 2004] see Family Ceratosauridae Marsh, 1884
             Genus †Ceratosaurus Marsh, 1884