|Scientific name :||Ceratosaurus nasicornis|
|Time period :||Late Jurassic|
|Primary diet :||Carnivore|
|In the documentary|
|Fatalities caused :||One Dryosaurus|
In the late Jurassic segment, 3 Dryosaurus look for water but fail to find any. Suddenly, a Ceratosaurus comes out of ambush and attacks the Dryosaurus. The Ceratosaurus catches the slowest youngster. The 2 remaining Dryosaurushide under a Camarasaurus. Later, a male Stegosaurus meets a female and tries to show off. Then the Ceratosaurus comes out of nowhere but the male's tail spikes hurt the predator. The Ceratosaurus walks off in defeat. Later, a much larger Allosaurus then attacks and kills the Ceratosaurus who is trying to hunt the Dryosaurus again.
- Ceratosaurus's hands couldn't pivot without breaking them.
- The narrator describes Ceratosaurus as being the last of its kind, while, in real life, it was among the most primitive members of its family.