I don't actually know much about dinosaurs, other than I am continually intrigued by the wide variety of curious shapes their bodies had. This one at first glance looks very similar to Stegoceras, they both had thick domed heads with spikes around the base of the skull. But Pachycephalosaurus had a spiked, horny face as well and rows of studded bumps down its back and tail. So of course I had to add those details.
