Synonymy of Ornatotholus with Stegoceras

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Merge Ornatotholus with the Stegoceras page. Ornatotholus, thought to be a North American relative of Homalocephale, is actually a species of Stegoceras, based on the references below to be added to this page:

Sullivan, R.M., 2003, Revision of the dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauridae): Journal of Vertebrate Paleontology, v. 23, p.167-193.

M. Goodwin, M. Colbert, and T. B. Rowe. 2004. High-resolution computed tomography of the type Ornatotholus browni (Ornithischia: Pachycephalosauria) confirms its early ontogenetic stage and synonymy with Stegoceras validum. Journal of Vertebrate Paleontology 24(3, suppl.):65A.

Maryañska, T., Chapman, R.E., and Weishampel, D.B., 2004, Pachycephalosauria; in Weishampel, D.B., Dodson, P. and Osmólska, H., eds., The Dinosauria (2nd ed): Berkeley, University of California Press, p. 464-477.

M. J. Ryan and D. C. Evans. 2005. Ornithischian dinosaurs. In P. J. Currie & E. B. Koppelhus. Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press, Bloomington 312-348.