Classification of Currie et al. 2008

G. †Protoceratops Granger and Gregory 1923
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Protoceratops andrewsi Granger and Gregory 1923
Fm. †Ceratopsidae Marsh 1888 [ceratopsid]
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Subfm. †Centrosaurinae Lambe 1915
G. †Centrosaurus Lambe 1905
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Centrosaurus apertus Lambe 1905
G. †Chasmosaurus Lambe 1914
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Chasmosaurus belli Lambe 1902
G. †Pachyrhinosaurus Sternberg 1950
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Pachyrhinosaurus canadensis Sternberg 1950
Pachyrhinosaurus lakustai Currie et al. 2008
G. †Styracosaurus Lambe 1913
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G. †Triceratops Marsh 1889
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Triceratops horridus Marsh 1889
G. †Einiosaurus Sampson 1994
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G. †Achelousaurus Sampson 1994
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Achelousaurus horneri Sampson 1994
G. †Zuniceratops Wolfe and Kirkland 1998
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Zuniceratops christopheri Wolfe and Kirkland 1998
G. †Albertaceratops Ryan 2007
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