Deinonychus (DIE-non-e-cuss) Meat eater, 10 feet long, Early Cretaceous Period.115 million years ago located in western North America. Deinonychus was a man-sized “raptor.” It had sharp teeth but probably killed with the single big claw on each of its hands and feet. Deinonychus should have been the real bad guy in Jurassic Park. He It was the same size. Velociraptor in real life was the size of a poodle.