PaleoDB taxon number: 137134
Full reference: R. M. Sullivan. 2006. A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia). Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35:348-365
Sister taxa: none
Type specimen: UAMAK-493-V-001, a partial skull (left squamosal). Its type locality is W side Colville River (UAM #AK-493-V-001), which is in a Campanian terrestrial horizon in the Prince Creek Formation of Alaska.
Ecology: ground dwelling herbivore