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
G. †Scutellosaurus Colbert 1981
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†Scutellosaurus lawleri Colbert 1981
Unr. †Euornithopoda Sereno 1986
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G. †Othnielosaurus Galton 2007
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
G. †Stormbergia Butler 2005
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†Stormbergia dangershoeki Butler 2005
Unr. †Ornithischia Seeley 1888 [ornithischian]
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G. †Eocursor Butler et al. 2007
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†Eocursor parvus Butler et al. 2007
Unr. †Genasauria Sereno 1986
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G. †Lesothosaurus Galton 1978
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Unr. †Neornithischia Cooper 1985
Unr. †Thyreophora Nopcsa 1915
Fm. †Heterodontosauridae Romer 1966 [heterodontosaurid]
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G. †Abrictosaurus Hopson 1975
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†Abrictosaurus consors Thulborn 1974
G. †Heterodontosaurus Crompton and Charig 1962
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†Heterodontosaurus tucki Crompton and Charig 1962
G. †Pisanosaurus Casamiquela 1967
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†Pisanosaurus mertii Casamiquela 1967