Alternative spelling: Cerastosauria
Invalid subtaxa: Antrodemus stechowi Janensch 1920 [nomen dubium], Betasuchus Huene 1932 [nomen dubium], Ceratosaurus meriani Greppin 1870 [nomen dubium], Ceratosaurus roechlingi Janensch 1925 [nomen dubium], Labrosaurus meriani Greppin 1870 [nomen dubium], Labrosaurus stechowi Janensch 1920 [nomen dubium], Megalosaurus meriani Greppin 1870 [nomen dubium], Orthogoniosaurus Das-Gupta 1930 [nomen dubium], Velocipes Huene 1932 [nomen dubium]
Full reference: O. C. Marsh. 1884. The classification and affinities of dinosaurian reptiles. Nature 31:68-69
Parent taxon: Averostra according to M. T. Carrano et al. 2012
Sister taxon: Tetanurae
Subtaxa: Abelisauroidea, Berberosaurus, Camarillasaurus, Ceratosauridae, Ceratosauroidea, Ceratosaurus, Deltadromeus, Elaphrosaurus, Genyodectes, Neoceratosauria, Spinostropheus, Velocipes guerichi
Ecology: ground dwelling carnivore