Species
Extinct

Pachycephalosaurus grangeri

subjective synonym of Pachycephalosaurus wyomingensis
Brown and Schlaikjer 1943
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
B. Brown and E. M. Schlaikjer. 1943. A study of the troödont dinosaurs with the description of a new genus and four new species. Bulletin of the American Museum of Natural History 82(5):115-150