Ceratosauridae

Ceratosauridae is a family of ceratosaurian theropod dinosaurs known mainly from the Late Jurassic Ceratosaurus, with the fragmentary Genyodectes of Cretaceous Patagonia being the only other widely recognized member. It falls within the more exclusive clade Neoceratosauria as the sister group to Abelisauroidea, the branch of ceratosaurs that includes the abelisaurids and noasaurids. Because Genyodectes is known from such incomplete remains, it is difficult to separate features that characterize the whole family from those unique to Ceratosaurus, and the traits shown to unite the two genera come chiefly from their teeth. Its members were large-bodied predators, and the group's limits remain unsettled: animals such as Eoabelisaurus and Ostafrikasaurus are probable ceratosaurs whose membership in the family is uncertain.