Classification of Coombs, Jr. 1988

G. †Diclonius Cope 1876
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Invalid names: Diclonius calamarius Cope 1876 [nomen dubium], Diclonius perangulatus Cope 1876 [nomen dubium]
Diclonius pentagonus Cope 1876
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G. †Claosaurus Marsh 1890
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Claosaurus agilis Marsh 1872
G. †Trachodon Leidy 1856
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Trachodon mirabilis Leidy 1856