Pachycephalosauridae

Smaller than a Microraptor!

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Pachycephalosauridae Temporal range: Middle Jurassic - Late Cretaceous
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Sauropsida
Superorder:	Dinosauria
Order:	Ornithischia
Suborder:	Marginocephalia

Pachycephalosauridae is a family of ornithischian dinosaurs of which the type genus is Pachycephalosaurus wyomingensis.

Genera

The following taxonomy follows Sullivan's 2006 classification unless otherwise noted.

Family Pachycephalosauridae

• • Acrotholus
  • Alaskacephale

Alaskacephale gangloffi

• • Amtocephale
  • Colepiocephale
  • Foraminacephale
  • Goyocephale
  • Gravitholus
  • Hanssuesia
  • Homalocephale - possible juvenile form of Prenocephale
  • Prenocephale
  • Sphaerotholus
  • Stegoceras (incl. Ornatotholus)
  • Texacephale
  • Tylocephale
  • Wannanosaurus
  • Tribe Pachycephalosaurini
    • Dracorex - possible juvenile form of Pachycephalosaurus
    • Pachycephalosaurus
    • Stygimoloch - possible juvenile form of Pachycephalosaurus
• Nomina dubia (doubtful names)
  • Ferganocephale
  • "Stegoceras" bexelli