A new centrosaurine from the Late Cretaceous of Alberta, Canada, and the evolution of parietal ornamentation in horned dinosaurs

A. A. Farke, M. J. Ryan, P. M. Barrett, D. H. Tanke, D. R. Braman, M. A. Loewen, and M. R. Graham

2011

Article

Acta Palaeontologica Polonica 56(4):691-702

Find it at:

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

Taxa discussed in this work:

• Spinops
• Spinops sternbergorum
• Vagaceratops

Taxonomy:

• Spinops sternbergorum belongs to Spinops - Farke et al. (2011)
• Vagaceratops irvinensis belongs to Vagaceratops - Farke et al. (2011)