According to the latest and most accepted theory , Ceratosauria includes the Late Jurassic to Late Cretaceous theropods Ceratosaurus , Elaphrosaurus , and Abelisaurus , found primarily ( though not exclusively ) in the Southern Hemisphere .
Ceratosauria includes the Upper Jurassic to Upper Cretaceous theropods Ceratosaurus , Elaphrosaurus , and Abelisaurus , found mainly in the southern hemisphere .