othniel charles marsh named the family ceratosauridae in 1884 to contain the type species, "ceratosaurus nasicornis". since then, a number of other species have been referred to this family, mainly from the genus "ceratosaurus". currently recognized ceratosaurid species include "c. dentisulcatus", "c. magnicornis", and "genyodectes serus". "c. stechowi" is an undiagnostic ceratosaur. delcourt (2018) defined ceratosauridae as "the most inclusive clade containing "ceratosaurus nasicornis" but not "carnotaurus sastrei"".