Ornithischia Seeley, 1887

Farke, Andrew A., Ryan, Michael J., Barrett, Paul M., Tanke, Darren H., Braman, Dennis R., Loewen, Mark A. & Graham, Mark R., 2011, A new centrosaurine from the Late Cretaceous of Alberta, Canada, and the evolution of parietal ornamentation in horned dinosaurs, Acta Palaeontologica Polonica 56 (4), pp. 691-702 : 693-694

Ornithischia Seeley, 1887

Ceratopsia Marsh, 1890

http://dx.doi.org/10.4202/app.2010.0121

Ceratopsidae Marsh, 1888

Centrosaurinae Lambe, 1915

Genus Spinops nov.

Etymology: From the Latin spina, spine; and the Greek— ops, face; referring to the ornamentation on the face.

Type species: Spinops sternbergorum sp. nov.; see below.

Diagnosis.—As for the only species.