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Sampson, S. D., E. K. Lund. 2013. A remarkable short-snouted horned dinosaur from the Late Cretaceous (late Campanian) of southern Laramidia. Proceedings of the Royal Society B: Biological Sciences. Vol. 280(1766).
Sampson, Scott D., Lund, Eric K., Loewen, Mark A., Farke, Andrew A. and Clayton, Katherine E. 2013. A remarkable short-snouted horned dinosaur from the Late Cretaceous (late Campanian) of southern Laramidia. Proceedings of the Royal Society B. Vol. 280(1766).