Ceratosaurus (Sceraptosaurus by the Harryhausen List) are featured in The Animal World. They were the most carnivorous dinosaurs of the Jurassic. A male Ceratosaurus kills a Stegosaurus in battle, but is soon attacked by a female Ceratosaurus. The two Ceratosaurs fall off of the high cliff into the water to their deaths. Descendents of the Ceratosaurs perished in the extinction.