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†family Pachycephalosauridae Sternberg 1945 (ornithischian)

Reptilia - Neornithischia

PaleoDB taxon number: 38783

Synonym: Tholocephalidae Sereno 1986 (taxon 52817)

Full reference: C. M. Sternberg. 1945. Pachycephalosauridae proposed for dome-headed dinosaurs, Stegoceras lambei, n. sp., described. Journal of Paleontology 19(5):534-538

Parent taxon: Pachycephalosauria according to F.-L. Han et al. 2012

Sister taxa: Goyocephale, Goyocephalia, Homalocephale, Homalocephalidae, Pachycephalosauroidea, Qiyunshanpus, Tianchungosauroidea, Wannanosaurus

Subtaxa: Acrotholus, Amtocephale, Colepiocephale, Domocephalinae, Gravitholus, Hanssuesia, Pachycephalosaurinae, Pachycephalosaurini, Prenocephale, Stegoceras, Texacephale, Troodon bexelli, Tylocephale

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Ecology: ground dwelling herbivore