Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
   Gnathostomata
     Teleostomi Bonaparte, 1836
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Clade Tetrapoda Hatschek & Cori 1896 [Laurin 2020]
         Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. - amniotes see Clade Amniota Haeckel 1866 [Laurin & Reisz 2020]
           Class Reptilia Linnaeus, 1758 [paraphyletic] - reptiles
             Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
               Infraclass Archosauromorpha Huene, 1946 see Clade Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval.
                 Superorder Archosauria Cope, 1869 - archosaurs see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
                   †Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
                     Order †Saurischia Seeley, 1887 see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
                       Suborder †Theropoda Marsh, 1881 see Clade Theropoda Marsh 1881 [Naish, Cau, Holtz Jr., Fabbri & Gauthier 2020]
                         Family †Megalosauridae Fitzinger, 1843
                           01 Genus †Bahariasaurus Stromer, 1934
                           02 Genus †Carcharodontosaurus Stromer, 1931
                           03 ?Genus †"Chingkankousaurus" Young, 1958
                           04 ?Genus †Embasasaurus Carroll, 1988, orth. inval. see Genus Embasaurus Riabinin, 1931, nom. dub.
                           05 Genus †Erectopus Huene, 1921
                           06 Genus †Eustreptospondylus Walker, 1964
                           07 Genus †Kelmayisaurus Dong, 1973
                           08 Genus †Majungasaurus Lavocat, 1955
                           09 Genus †Megalosaurus Buckland, 1822
                           10 Genus †Metriacanthosaurus Walker, 1964
                           11 Genus †Poekilopleuron Eudes-Deslongchamps, 1837
                           12 Genus †Szechuanosaurus Young, 1942, nom. dub.
                           13 Genus †Torvosaurus Galton & Jensen, 1979
                           14 Genus †Xuanhanosaurus Dong, 1984