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Vagaceratops (meaning "wandering horned face", in reference to its close relationship with Kosmoceratops from Utah) is a genus of herbivorous ceratopsian dinosaur. It is a chasmosaurine ceratopsian which lived during the Late Cretaceous period (late Campanian) in what is now Alberta. Its fossils have been recovered from the Upper Dinosaur Park Formation.

Vagaceratops is characterized by a short nose horn and brow horns that are reduced to low bosses. The frill is distinctive in being square shaped, with a row of ten, forward-curving hornlets along the back. 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.This species was originally described as a species of Chasmosaurus (C. irvinensis) in 2001. Its relationships remain debated. Vagaceratops has variously been allied withKosmoceratops or with Chasmosaurus.

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