Stegoceras was a small pachycephalosaurid that lived in the Cretaceous Period. This herbivore had an estimated length of up to 2 metres (6.6 ft) and weighed 10 kilograms (22 lb) – 40 kilograms (88 lb).
 |
Wikipedia has a more detailed and comprehensive article on Stegoceras |
Video games
Stegoceras from Jurassic Park III: Park Builder.
It appears in Jurassic Park III: Park Builder as a Herbivore One.