This taxon is considered nomen dubium, species not entered
of the valid taxon Chasmosaurus
according to the Paleobiology Database.
See the page for Chasmosaurus →
Bibliography
Original description
R. S. Lull. 1933. A revision of the Ceratopsia or horned dinosaurs. Memoirs of the Peabody Museum of Natural History 3(3):1-175
DOI ↗