Have you ever heard about Pachycephalosaurus? In today’s episode of our VR 360 Jurassic Encyclopedia, we take a closer look at this animal and provide you with lots of interesting facts about this dinosaur. Pachycephalosaurus was a dinosaur that lived about 70 to 66 million years ago in what is now North America. Pachycephalosaurus was a dinosaur that lived about 70 to 66 million years ago in what is now North America. Fossils of the dinosaur have been discovered in Montana, South Dakota, Wyoming, and Alberta. Pachycephalosaurus was one of the last non-avian dinosaurs before the Cretaceous-Paleogene extinction. It is speculated that it was bipedal with a length of up to 4.5 meters and its weight could have been as much as 450 kilograms. Pachycephalosaurus were probably herbivorous. If you want more information on Pachycephalosaurus, be sure to watch our new VR Jurassic Encyclopedia #19 video series, where we talk more about this dinosaur.