Homalocephalidae
Ornithischia Genasauria Cerapoda Marginocephalia Pachycephalosauria Homalocephalidae [Herbivore]
Cretaceous Late
China
Wannanosaurus yansiensis - Xiaoyan Formation
Mongolia
Goyocephale lattimorei - Unnamed unit, Ovorkhangai
Homalocephale calathoceros - Nemegt Formation