Kirkland & Deblieux 2010. New basal centrosaurine ceratopsian skulls from the Wahweap Formation (Middle Campanian), Grand Staircase-Escalante National Monument, Southern Utah. New perspectives on horned dinosaurs: the Royal Tyrrell Museum Ceratopsian Symposium., Indiana University Press, Bloomington and Indianapolis, 2010: i-xxii, 1-624. Chapter pagination: 117-140