Classification of Cope 1892

G. †Holonema Newberry 1890
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†Holonema horrida Cope 1892
†Holonema rugosa Claypole 1883
G. †Ganorhynchus Traquair 1873
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†Ganorhynchus oblongus Cope 1892
G. †Holoptychius Agassiz 1843
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†Holoptychius filosus Cope 1892
G. †Coccosteus Agassiz 1843
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†Coccosteus macromus Cope 1892
G. †Megalichthys Agassiz 1835
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