Reptilia - Neornithischia - Pachycephalosauridae
Full reference: D. C. Woodruff, J. R. Horner, M. B. Goodwin and D. C. Evans. 2025. The first pachycephalosaurid from the Late Cretaceous Two Medicine Formation: effects of the Western Interior Seaway on North American pachycephalosaurid evolution. Zoological Journal of the Linnean Society 205(2):zlaf087
Belongs to Brontotholus according to D. C. Woodruff et al. 2025
Sister taxa: none
Type specimen: MOR 480, a partial skull (frontoparietal dome). Its type locality is Achelousaurus type, MOR TM-060, which is in a Campanian terrestrial siltstone in the Two Medicine Formation of Montana.
Ecology: ground dwelling herbivore
Distribution:
• Cretaceous of Canada (1: Alberta collection), United States (2: Montana)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.