Classification of Hunt and Lehman 2008

G. †Quetzalcoatlus Lawson 1975
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†Quetzalcoatlus northropi Lawson 1975
G. †Alamosaurus Gilmore 1922
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†Alamosaurus sanjuanensis Gilmore 1922
Subfm. †Chasmosaurinae Lambe 1915
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G. †Anchiceratops Brown 1914
G. †Arrhinoceratops Parks 1925
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G. †Chasmosaurus Lambe 1914
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†Chasmosaurus belli Lambe 1902
†Chasmosaurus russelli Sternberg 1940
G. †Eotriceratops Wu et al. 2007
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†Eotriceratops xerinsularis Wu et al. 2007
G. †Pentaceratops Osborn 1923
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†Pentaceratops sternbergi Osborn 1923
G. †Torosaurus Marsh 1891
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†Torosaurus latus Marsh 1891
†Torosaurus utahensis Gilmore 1946
G. †Triceratops Marsh 1889
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†Triceratops horridus Marsh 1889
Invalid names: Diceratus Mateus 2008 [synonym]
G. †Kritosaurus Brown 1910
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†Kritosaurus navajovius Brown 1910