Genus
Extinct

Dracorex

subjective synonym of Pachycephalosaurus
Bakker et al. 2006
This taxon is considered subjective synonym of of the valid taxon Pachycephalosaurus according to the Paleobiology Database. See the page for Pachycephalosaurus →
Bibliography
Original description
R. T. Bakker, R. M. Sullivan, and V. Porter, P. Larson, S. J. Saulsbury. 2006. Dracorex hogwartsia, n. gen., n. sp., a spiked, flat-headed pachycephalosaurid dinosaur from the Upper Cretaceous Hell Creek Formation of South Dakota. Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:331-345