|Scientific name :||Dilophosaurus wetherilli|
|Time period :||Early Jurassic|
|Primary diet :||Carnivore|
|In the documentary|
|Fatalities caused :||One Anchisaurus|
In the early Jurassic segment, Dilophosaurus is seen stopping a Coelophysis hunt. She roars at the Coelophysis' prey: a male Anchisaurus. She grabs the basal sauropod's neck with her teeth and slashes him with her hand claws. Then, she forces the Anchisaurus down and kills him. Her baby comes to eat with her. All of a sudden, a rival Dilophosaurus comes towards them. The mother fights the rival off, then the mother and the baby leave. Later, when the Coelophysis are eating the carcass, the rival chases them off.
- The narrator said Coelophysis is related to Dilophosaurus as a ceratosaur but Coelophysis is a coelophysid and Dilophosaurus is a dilophosaurid and both groups aren't related at all with ceratosaurs (though Dilophosaurus was considered a coelophysoid).
- Dilophosaurus may have had feathers, but it's still debated.
- Dilophosaurus hands couldn't pivot without breaking them.
- The Dilophosaurus appeared in the Early Jurassic segment 200 million years ago, but it did not live exactly at this time.