The Cretaceous Period started 201 million years ago, and lasted until 145 million years ago. Dinosaurs thrived in this era, and are known for their towering size.
Here's a list of prolific dinosaurs during the Cretaceous Period.
Tyrannosaurus Rex Velociraptor Triceratops
The Tyrannosaurus rex was a carnivourous dinosaur who was at the top of the food chain, and ruled the cretaceous period. They are often considered the most famous dinosaur, and had a bite force of up to 5,000 pounds. The velociraptor, which means "speedy thief" lived in North America, and they were actually the size of a turkey. The triceratops was up to 30 feet long, and were actually hunted by T-Rex's.