The genus was named by Scott D. Sampson, Mark A. Loewen, Andrew A. Farke, Eric M. Roberts, Catherine A. Forster, Joshua A. Smith, and Alan L. Titus in 2010, and the type species is "Vagaceratops irvinensis".
В 2010 году описан "Scott D. Sampson", совместно с "Mark A. Loewen", "Andrew A. Farke", "Eric M. Roberts", "Catherine A. Forster", "Joshua A. Smith" и "Alan L. Titus" как новый род "Vagaceratops".