Gravitholus

heavy dome

• gravis · Latin · heavy
• tholos · Greek · dome

The name combines the Latin "gravis" (heavy) with the Greek "tholos" (dome, rotunda). It refers to the very thick, heavy, domed skull roof of the only known specimen. The type species is Gravitholus albertae, with "albertae" referring to Alberta, Canada, where it was found.

Named by

Wall and Galton

Year named

1979

Period

Late Cretaceous

Stage

Campanian

Found in

Oldman Formation, Alberta, Canada

A pachycephalosaurid ("dome-headed") dinosaur known from a single, incomplete skull dome. Its validity is debated: some researchers have suggested it may be a synonym of Stegoceras or another pachycephalosaurid, or that it is based on inadequate material.