Stegoceras was a plant-eating bipedal dinosaur that lived during the Late Cretaceous period.

It is one of the best known of the pachycephalosaurids, charaterized by the distinctive dome-shaped skull which have earned them the nickname of boneheads. The dome of the head of Stegoceras is surrounded by a frill of little horns and knobs.

Dino Facts

  • Pronounced: STEG-oh-SEH-rass
  • Means: Roof horn
  • Size: 6.5 ft (2 m)
  • Where: North America (Alberta, Montana, New Mexico)
  • When: Later Cretaceous
  • Diet: Herbivorous