Pachyrhinosaurus was a herbivore. It lived in the Cretaceous period and inhabited North America. Its fossils have been found in places such as Montana, Alberta (Canada) and Alaska.

All these Pachyrhinosaurus pictures were collected from the internet. Enjoy and explore:

Pachyrhinosaurus was described by the following scientific paper(s):
  • D. Tanke. 1988. Ontogeny and dimorphism in Pachyrhinosaurus (Reptilia, Ceratopsidae), Pipestone Creek, N.W. Alberta, Canada. Journal of Vertebrate Paleontology 8(3, suppl.):27A
  • W. Langston, Jr. 1967. The thick-headed ceratopsian dinosaur Pachyrhinosaurus (Reptilia: Ornithischia), from the Edmonton Formation near Drumheller, Canada. Canadian Journal of Earth Sciences 4:171-186
  • E. M. Brouwers and W. A. Clemens. 1987. Dinosaurs on the North Slope, Alaska: High latitude, latest Cretaceous environments. Science 237(4822):1608-1610