This taxon is considered nomen dubium
of the valid taxon Ceratopsidae
according to the Paleobiology Database.
See the page for Ceratopsidae →
Bibliography
Original description
E. A. CoBabe and D. E. Fastovsky. 1987. Ugrosaurus olsoni, a new ceratopsian (Reptilia: Ornithischia) from the Hell Creek Formation of eastern Montana. Journal of Paleontology 61(1):148-154
DOI ↗