This taxon is considered subjective synonym of
of the valid taxon Triceratops
according to the Paleobiology Database.
See the page for Triceratops →
Bibliography
Original description
J. B. Hatcher and R. S. Lull. 1905. Two new Ceratopsia from the Laramie of Converse County, Wyoming. The American Journal of Science, series 4 20(120):413-419
DOI ↗