†unranked clade Pachycephalosaurini Sullivan 2003 (ornithischian)

Reptilia - Ornithischia - Pachycephalosauridae

Full reference: R. M. Sullivan. 2003. Revision of the dinosaur Stegoceras Lambe (Ornithischia, Pachycephalosauridae). Journal of Vertebrate Paleontology 23(1):181-207

Parent taxon: Pachycephalosauridae according to R. M. Sullivan 2006

See also Sullivan 2003 and Woodruff et al. 2021

Sister taxa: Amtocephale, Colepiocephale, Gravitholus, Hanssuesia, Pachycephalosaurinae, Texacephale, Tylocephale, Domocephalinae

Subtaxa: Alaskacephale

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Ecology: ground dwelling herbivore

Distribution: found only at W side Colville River (UAM #AK-493-V-001) (Cretaceous of Alaska)

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