Named By: Mahito Watabe, Khishigjaw Tsogtbaatar & Robert M. Sullivan - 2011.
Classification: Chordata, Reptilia, Dinosauria, Ornithischia, Pachycephalosauria.
Species: A. gobiensis (type).
Size: Uncertain due to lack of remains.
Known locations: Mongolia - Baynshire Formation.
Time period: Turonian to Santonian of the Cretaceous.
Fossil representation: Partial skull represented by the frontoparietal dome of a subadult (MPC-D 100/1203).
The annoying thing about Amtocephale is that it is yet another pachycephalosaur genus that is known only from skull material, specifically the thick dome. The exciting thing about Amtocephale however is that at the time of its discovery it represents what might be the oldest known pachycephalosaur genus.
- A new pachycephalosaurid from the Baynshire Formation (Cenomanian-late Santonian), Gobi Desert, Mongolia - Mahito Watabe, Khishigjaw Tsogtbaatar & Robert M. Sullivan - 2011.