Stygimoloch was a herbivore. It lived in the Cretaceous period and inhabited North America. Its fossils have been found in places such as Colorado, North Dakota and South Dakota.

All the Stygimoloch illustrations below were collected from the internet. Enjoy and explore:

Stygimoloch was described by the following scientific paper(s):
  • E. B. Giffin and D. L. Gabriel. 1988. A new pachycephalosaurid skull (Ornithischia) from the Cretaceous Hell Creek Formation of Montana. Journal of Vertebrate Paleontology 7(4):398-407
  • J. J. Eberle and J. A. Lillegraven. 1998. A new important record of earliest Cenozoic mammalian history: geologic setting, Multituberculata, and Peradectia. Rocky Mountain Geology 33(1):3-47
  • J. D. Archibald. 1982. A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana. University of California Publications in Geological Sciences 122:1-286