Ornatotholus

Taxobox
name = "Ornatotholus"
regnum = Animalia
phylum = Chordata
classis = Sauropsida
superordo = Dinosauria
ordo = Ornithischia
subordo = Cerapoda
familia = Pachycephalosauridae
genus = "Ornatotholus"
genus_authority = Galton & Sues, 1983
species = "O. browni"
binomial = "Ornatotholus browni"
binomial_authority = (Wall & Galton, 1979)

"Ornatotholus" is a genus of pachycephalosaur dinosaur from southern Alberta. Prior to the discovery of "D. hogwartsia" in South Dakota, it was the only known North American pachycephalosaur with a flat skull roof. It appears to share many similarities with "Stegoceras", and may represent a juvenile form, making it a "nomen dubium".

References

* T.E. Williamson and T.D. Carr. 2002. A new genus of derived Pachycephalosaurian from Western North America. "Journal of Vertebrate Paleontology" 22: 779–801.