Species
Extinct

Stygimoloch spinifer

subjective synonym of Pachycephalosaurus wyomingensis
Galton and Sues 1983
This taxon is considered subjective synonym of of the valid taxon Pachycephalosaurus wyomingensis according to the Paleobiology Database. See the page for Pachycephalosaurus wyomingensis →
Bibliography
Original description
P. M. Galton and H.-D. Sues. 1983. New data on pachycephalosaurid dinosaurs (Reptilia: Ornithischia) from North America. Canadian Journal of Earth Sciences 20(3):462-472 DOI ↗