Classification of Breithaupt 1985

Fm. †Ornithomimidae Marsh 1890 [ornithomimid]
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G. †Ornithomimus Marsh 1890
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†Ornithomimus sedens Marsh 1892
Fm. †Dromaeosauridae Colbert and Russell 1969
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G. †Dromaeosaurus Matthew and Brown 1922
Fm. †Saurornithoididae Barsbold 1974
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G. †Paronychodon Cope 1876
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G. †Pectinodon Carpenter 1982
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†Pectinodon bakkeri Carpenter 1982
Fm. †Dryptosauridae Marsh 1890
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G. †Dryptosaurus Marsh 1877
Fm. †Tyrannosauridae Osborn 1906 [tyrannosaurid]
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G. †Albertosaurus Osborn 1905 [Alberta lizard]
G. †Tyrannosaurus Osborn 1905 [tyrant lizard]
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†Tyrannosaurus rex Osborn 1905 [tyrant lizard king]
Fm. †Hypsilophodontidae Dollo 1882 [hypsilophodontid]
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G. †Thescelosaurus Gilmore 1913
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†Thescelosaurus neglectus Gilmore 1913
Fm. †Hadrosauridae Cope 1869 [hadrosaurid]
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G. †Edmontosaurus Lambe 1917
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†Edmontosaurus regalis Lambe 1917
Fm. †Pachycephalosauridae Sternberg 1945
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G. †Pachycephalosaurus Brown and Schlaikjer 1943
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Fm. †Nodosauridae Marsh 1890
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G. †Edmontonia Sternberg 1928
Fm. †Ankylosauridae Brown 1908 [ankylosaurid]
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G. †Ankylosaurus Brown 1908
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Fm. †Protoceratopsidae Granger and Gregory 1923
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G. †Leptoceratops Brown 1914
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†Leptoceratops gracilis Brown 1914
Fm. †Ceratopsidae Marsh 1888 [ceratopsid]
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G. †Agathaumas Cope 1872
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†Agathaumas sylvestris Cope 1872
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 calicornis Marsh 1898
†Triceratops elatus Marsh 1891
†Triceratops eurycephalus Schlaikjer 1935
†Triceratops hatcheri Lull 1905
†Triceratops horridus Marsh 1889
†Triceratops obtusus Marsh 1898
†Triceratops prorsus Marsh 1890
†Triceratops serratus Marsh 1890
Fm. †Antarctosauridae Olshevsky 1978
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G. †Almosaurus Gilmore 1922