Classification of Dodson 1990

Unr. †Marginocephalia Sereno 1986
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Subor. †Ceratopsia Marsh 1890 [ceratopsian]
Subor. †Pachycephalosauria Maryańska and Osmólska 1974
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G. †Yaverlandia Galton 1971
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†Yaverlandia bitholus Galton 1971
G. †Stenopelix Meyer 1857
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†Stenopelix valdensis Meyer 1857