Every month, 100,000 readers use the Dinosaur Database, but we receive no support from you. Developing and updating the database requires a lot of work. Therefore, as of September 1, 2025, the database will be closed. If you want it to remain open and be updated, please support us via the "Buy us a coffee" button available on every page.
Dinosaur: Dracorex hogwartsia

Length*: | 3.3 m | 10.8 ft |
Weight*: | 165 kg | 364 lb |
*The largest known specimen
Period
Epoch: Late Cretaceous
Stage: Late Maastrichtian
Years: 72.1–66 Ma
Details
Status: S > Pachycephalosaurus wyomingensis
Author: Bakker et al.
Year: 2006
Distribution
Area: North America
Country: USA
Region: South Dakota
Formation: Hell Creek
Sources
Material: Nearly complete skull and four cervical vertebrae.
References: Bakker, R. T., Sullivan, R. M., Porter, V., Larson, P. and Saulsbury, S.J. (2006). "Dracorex hogwartsia, n. gen., n. sp., a spiked, flat-headed pachycephalosaurid dinosaur from the Upper Cretaceous Hell Creek Formation of South Dakota.