1. Pachyrhinosaurus canadensis, representing a new family of Ceratopsia, from southern Alberta;CM Sternberg;National Museum of Canada Bulletin,1950
2. The thick-headed ceratopsian dinosaur Pachyrhinosaurus (Reptilia: Ornithischia), from the Edmonton Formation near Drumheller, Canada;W Langston Jr;Can J Earth Sci,1967
3. The ceratopsian dinosaurs and associated lower vertebrates from the St. Mary River Formation (Maastrichtian) at Scabby Butte, southern Alberta;W Langston Jr;Can J Earth Sci,1975
4. Currie PJ, Langston W Jr, Tanke DH (2008) A new species of Pachyrhinosaurus (Dinosauria, Ceratopsidae) from the Upper Cretaceous of Alberta, Canada. In: Currie PJ, Langston W Jr, Tanke DH, editors. A new horned dinosaur from an Upper Cretaceous Bone Bed in Alberta. Ottawa: NRC Research Press. 1–108.
5. A new Maastricthian species of the centrosaurine ceratopsid Pachyrhinosaurus from the North Slope of Alaska;AR Fiorillo;Acta Palaeontol Pol,2012