Classification of Butler et al. 2007
Subor. †Ornithopoda Marsh 1881 [ornithopod]
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G. †Hypsilophodon Huxley 1870
G. †Jeholosaurus Xu et al. 2000
G. †Orodromeus Horner and Weishampel 1988
Subor. †Thyreophora Nopcsa 1915
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G. †Emausaurus Haubold 1990
G. †Scelidosaurus Owen 1859
Or. †Neornithischia Cooper 1985
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G. †Agilisaurus Peng 1990
Unr. †Cerapoda Sereno 1986
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Unr. †Marginocephalia Sereno 1986
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Subor. †Ceratopsia Marsh 1890 [ceratopsian]
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Infraor. †Neoceratopsia Sereno 1986
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G. †Archaeoceratops Dong and Azuma 1997
G. †Chaoyangsaurus Zhao et al. 1999
G. †Liaoceratops Xu et al. 2002
G. †Yinlong Xu et al. 2006
G. †Psittacosaurus Osborn 1923
Subor. †Pachycephalosauria Maryańska and Osmólska 1974
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G. †Goyocephale Perle et al. 1982
G. †Homalocephale Maryańska and Osmólska 1974
G. †Stenopelix Meyer 1857
G. †Wannanosaurus Hou 1977
Unr. †Ornithopoda Marsh 1881 [ornithopod]
G. †Hexinlusaurus Barrett et al. 2005
Unr. †Ornithischia Seeley 1888 [ornithischian]
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Fm. †Heterodontosauridae Romer 1966 [heterodontosaurid]
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