Classification of Dodson 1997
Fm. †Cetiosauridae Lydekker 1888 [cetiosaurid]
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G. †Haplocanthosaurus Hatcher 1903
Fm. †Diplodocidae Marsh 1884 [diplodocid]
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G. †Apatosaurus Marsh 1877
G. †Barosaurus Marsh 1890
G. †Diplodocus Marsh 1878
Fm. †Hypsilophodontidae Dollo 1882 [hypsilophodontid]
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G. †Orodromeus Horner and Weishampel 1988
G. †Othnielia Galton 1977
G. †Thescelosaurus Gilmore 1913
Fm. †Nodosauridae Marsh 1890
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G. †Edmontonia Sternberg 1928
G. †Sauropelta Ostrom 1970
Fm. †Protoceratopsidae Granger and Gregory 1923
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G. †Leptoceratops Brown 1914
G. †Montanoceratops Sternberg 1951
Fm. †Ceratopsidae Marsh 1888 [ceratopsid]
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Subfm. †Chasmosaurinae Lambe 1915
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G. †Chasmosaurus Lambe 1914
G. †Pentaceratops Osborn 1923
G. †Torosaurus Marsh 1891
G. †Triceratops Marsh 1889
Invalid names: Agathaumas Cope 1872 [nomen dubium], Polyonax Cope 1874 [nomen dubium]
Subfm. †Hadrosaurinae Lambe 1918 [hadrosaurine]
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G. †Anatotitan Brett-Surman 1990
G. †Edmontosaurus Lambe 1917
G. †Kritosaurus Brown 1910
G. †Lophorhothon Langston 1960
Subfm. †Lambeosaurinae Parks 1923 [lambeosaurine]
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G. †Hypacrosaurus Brown 1913
G. †Parasaurolophus Parks 1922