Stegoceras ('horned roof' - Greek stego-/στεγο- meaning 'roof' and ceras/κέρας meaning 'horn') was a genus of plant-eating ornithischian pachycephalosaurid dinosaur that lived in what is now North America during the Late Cretaceous Period. It had an estimated length of up to two metres (6.5 ft). It was named by Lawrence Lambe, in 1902.
It has served as a model for other pachycephalosaurs, due to the completeness of the excavated remains. From the 1920s to 1945, it was believed to be related to, or even synonomous with, Troodon, due to the similar form of the teeth. This proposal was, however, dispelled after better remains were found.
When a partial skeleton of Stegoceras was first discovered, it was thought to have gastralia, or belly ribs, not typically found in other ornithischian dinosaurs. They were subsequently found to be ossified tendons.
Researchers from University of Toronto Provide Details of New Studies and Findings in the Area of Life Science Research.(Report)
Oct 10, 2011; Scientists discuss in "Cranial ontogeny in Stegoceras validum (Dinosauria: Pachycephalosauria): a quantitative model of...