Classification of Wall and Galton 1979
Subor. †Ornithopoda Marsh 1881 [ornithopod]
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Fm. †Pachycephalosauridae Sternberg 1945
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G. †Homalocephale Maryańska and Osmólska 1974
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†Homalocephale calathocercos Maryańska and Osmólska 1974
G. †Stegoceras Lambe 1902
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†Stegoceras browni Wall and Galton 1979
†Stegoceras edmontonensis Brown and Schlaikjer 1943
†Stegoceras validus Lambe 1902
G. †Stenopelix Meyer 1857
G. †Wannanosaurus Hou 1977