Pachycephalosauridae
(Taxonomic Rank: Family)
Bipedal, herbivorous/omnivorous ornithischian dinosaurs with thick, heavily ossified skulls many of which were surrounded by nodes and/or spikes.

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Alaskacephale
Family: Pachycephalosauridae

Colepiocephale
Family: Pachycephalosauridae

Dracorex
Family: Pachycephalosauridae

Goyocephale
Family: Pachycephalosauridae

Gravitholus
Family: Pachycephalosauridae

Hanssuesia
Family: Pachycephalosauridae

Homalocephale
Family: Pachycephalosauridae

Micropachycephalosaurus
Family: Pachycephalosauridae

Pachycephalosaurus
Family: Pachycephalosauridae

Prenocephale
Family: Pachycephalosauridae

Stegoceras
Family: Pachycephalosauridae

Stygimoloch
Family: Pachycephalosauridae

Texacephale
Family: Pachycephalosauridae

Tylocephale
Family: Pachycephalosauridae

Wannanosaurus
Family: Pachycephalosauridae
 
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