Stygimoloch was a plant-eating dinosaur that had bony spikes and knobs on its skull. This bipedal dinosaur lived during the late Cretaceous period, about 68 million to 65 million years ago. Stygimoloch are ornithischian dinosaurs that had thick, domed, spiked skulls. (Now considered a growth stage of Pachycephalosaurus.)
The Animated Documentary Series was based on the other documentary dinosaur tv shows which is Walking with Dinosaurs, Dinosaur Planet, Planet Dinosaur, and Dinosaur Revolution. featuring 22 episodes
