Classification of Zheng et al. 2015
Unr. †Ceratopsia Marsh 1890 [ceratopsian]
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Fm. †Chaoyangsauridae Zhao 1983
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G. †Chaoyangsaurus Zhao et al. 1999
G. †Xuanhuaceratops Zhao et al. 2006
Infraor. †Neoceratopsia Sereno 1986
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G. †Aquilops Farke et al. 2014
G. †Archaeoceratops Dong and Azuma 1997
G. †Auroraceratops You et al. 2005
Unr. †Coronosauria Sereno 1986
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G. †Bagaceratops Maryanska and Osmólska 1975
Fm. †Ceratopsidae Marsh 1888 [ceratopsid]
G. †Protoceratops Granger and Gregory 1923
G. †Zuniceratops Wolfe and Kirkland 1998
G. †Graciliceratops Sereno 2000
Fm. †Leptoceratopsidae Nopcsa 1923 [leptoceratopsid]
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G. †Asiaceratops Nessov et al. 1989
G. †Cerasinops Chinnery and Horner 2007
G. †Leptoceratops Brown 1914
G. †Montanoceratops Sternberg 1951
G. †Prenoceratops Chinnery 2004
G. †Udanoceratops Kurzanov 1992
G. †Zhuchengceratops Xu et al. 2010
G. †Liaoceratops Xu et al. 2002
G. †Yamaceratops Makovicky and Norell 2006
Fm. †Psittacosauridae Osborn 1923
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G. †Psittacosaurus Osborn 1923
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†Psittacosaurus lujiatunensis Zhou et al. 2006
†Psittacosaurus mongoliensis Osborn 1923
†Psittacosaurus sinensis Young 1958
G. †Yinlong Xu et al. 2006