Classification of Evans et al. 2013

Unr. Dinosauria Owen 1842 [dinosaur]
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Unr. †Ornithischia Seeley 1888 [ornithischian]
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Fm. †Pachycephalosauridae Sternberg 1945
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G. †Acrotholus Evans et al. 2013
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†Acrotholus audeti Evans et al. 2013