Stegoceras validum

  • Pronounced:  steg - o - Sair- uhs

  • Diet:  Omnivore? (Both Meat and Plant-Eater)

  • Name Means:  "Roofed Horn"

  • Length:  8 feet (2.5 m)

  • Height:  4 feet (1.3 m)

  • Weight:  150 pounds (68 kilos)

  • Time:  Late Cretaceous - 70 million years ago

Fossil remains for this Dinosaur have been found in Western United States and Canada

Stegoceras was one of the smallest members of the same family that includes the more well known Pachycephalosaurus  It had a thick dome on its head, but instead of a ring of bumps or spikes, it had a small ridge of bone at the base of its dome. These were small, swift-running hunters who may have also eaten plants.

Discovered early in the 20th century, many subsequent dinosaurs were assigned to this genus and later reassigned. The genus is known from a complete skull, a number of partial skulls, and other skeletal material. To date, there is only one valid species for this genus. The skeletal remains of this dinosaur seem to support the theory of head butting for this family, which adds fuel to the debate over whether this activity would have been possible without injury to the spine.

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