Nicholas R. Longrich (2013). «Judiceratops tigris, a New Horned Dinosaur from the Middle Campanian Judith River Formation of Montana». Bulletin of the Peabody Museum of Natural History54 (1): 51-65. doi:10.3374/014.054.0103.
Longrich, N. R. (2014). «The horned dinosaurs Pentaceratops and Kosmoceratops from the upper Campanian of Alberta and implications for dinosaur biogeography». Cretaceous Research51: 292. doi:10.1016/j.cretres.2014.06.011.