Skull (cast) of the pachycephalosaur or “bone-head” dinosaur Stegoceras validum.
Artist William Stout drew these life restorations of Stegoceras validum for my book The New Dinosaur Dictionary.
Souvenir postcard from the Canadian Museum of Nature, Ottawa, Ontario, showing artist Eleanor Kish’s life restoration of a related pachycephalosaur, “Stygimoloch” (now believed to be a junior synonym of Pachycephalosaurus).