Pachycephalosaurus is a genus of pachycephalosaur dinosaur from the Late Cretaceous, in what is now North America.
Ka-Zar of Prehistoria[]
In the primordial world of Prehistoria Pachycephalosaurus are commonly call 'angtsìk by many cavemen tribes that thrive across every regions of the prehistorian landscape. These dinosaurs use their bony skulls to either fight against each other for a mate or to use against predators like predatory dinosaurs, Dimetrodon, and saber-tooth tigers. Pachycephalosaurus mostly roam in the warm tropical regions of Prehistoria feasting on plants.