This taxon is considered subjective synonym of
of the valid taxon Chasmosaurus russelli
according to the Paleobiology Database.
See the page for Chasmosaurus russelli →
Bibliography
Original description
N. R. Longrich. 2010. Mojoceratops perifania, a new chasmosaurine ceratopsid from the late Campanian of western Canada. Journal of Paleontology 84(4):681-694
DOI ↗