Also known as the top horned dinosaur, it is a herbivorous dinosaur belonging to the suborder of thick headed dinosaurs in the order Ornithischia, and lived in North America during the Late Cretaceous period. Length of 2 meters. Originating from the swollen headed dinosaur family, it is a bipedal herbivorous dinosaur. The thick and round skull is the most prominent feature of stegosaurs. Due to the femur being slightly longer than the tibia, the running speed of Stegosaurus may not be fast. Like other dinosaurs in the Pachycephalosaurus family, Stegosaurus had a thick skull composed of many small bone fragments that covered its eyes and neck like a semicircle. At birth, the head is not very thick, and as age increases, the skull will become thicker.