File:Achelousaurus Scale.svg
References:
- Paul, G.S. (2016) The Princeton Field Guide to Dinosaurs. 2nd ed. Princeton University Press p. 292
- Rivera-Sylva, H.E.; Hendrick, B.P.; Dodson, P. (2016) A Centrosaurine (Dinosauria: Ceratopsia) from the Aguja Formation (Late Campanian) of Northern Coahuila, Mexico. PLoS ONE 11(4): e0150529.
- Mallon JC, Anderson JS (2013) Skull Ecomorphology of Megaherbivorous Dinosaurs from the Dinosaur Park Formation (Upper Campanian) of Alberta, Canada. PLoS ONE 8(7): e67182.