Classification of Laub 1979

Fm. †Ceratopsidae Marsh 1888 [ceratopsid]
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G. †Ceratops Marsh 1888
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Ceratops montanus Marsh 1888
G. †Triceratops Marsh 1889
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Triceratops elatus Marsh 1891
Triceratops horridus Marsh 1889
Triceratops serratus Marsh 1890
Fm. †Pachyrhinosauridae Sternberg 1950
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G. †Pachyrhinosaurus Sternberg 1950