Classification of Lambe 1920

Fm. †Hadrosauridae Cope 1869 [hadrosaurid]
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Subfm. †Hadrosaurinae Lambe 1918 [hadrosaurine]
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G. †Claosaurus Marsh 1890
G. †Diclonius Cope 1876
G. †Edmontosaurus Lambe 1917
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†Edmontosaurus regalis Lambe 1917
G. †Gryposaurus Lambe 1914
G. †Kritosaurus Brown 1910
Invalid names: Trachodontinae Tornier 1913 [synonym]
Subfm. †Saurolophinae Brown 1914
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G. †Prosaurolophus Brown 1916
G. †Saurolophus Brown 1912
Invalid names: Stephanosaurinae Lambe 1920 [empty], Trachodontidae Lydekker 1888 [synonym]