Classification of Lull 1910

G. †Monoclonius Cope 1876
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†Monoclonius crassus Cope 1876
G. †Torosaurus Marsh 1891
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†Torosaurus latus Marsh 1891
G. †Triceratops Marsh 1889
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†Triceratops brevicornus Hatcher and Lull 1905
†Triceratops elatus Marsh 1891
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Invalid names: Triceratops calicornis Marsh 1898 [synonym]
†Triceratops prorsus Marsh 1890
G. †Ceratops Marsh 1888
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†Ceratops monatus Marsh 1888
G. †Diceratops Hatcher and Lull 1905
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†Diceratops hatcheri Lull 1905