Species
Extinct

Agathaumas sylvestris

nomen dubium, species not entered Ceratopsidae
Cope 1872
This taxon is considered nomen dubium, species not entered of the valid taxon Ceratopsidae according to the Paleobiology Database. See the page for Ceratopsidae
Bibliography
Original description
E. D. Cope. 1872. On the existence of Dinosauria in the transition beds of Wyoming. Proceedings of the American Philosophical Society (separate)