Classification of Delanoy et al. 2012
G. †Cymatoceras Hyatt 1884
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†Cymatoceras neocomiense d'Orbigny 1840
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Invalid names: Nautilus varusensis d'Orbigny 1850 [synonym]
Fm. Nautilidae de Blainville 1825
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G. †Eucymatoceras Spath 1927
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†Eucymatoceras plicatum Fitton 1835
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Invalid names: Nautilus requienianus d'Orbigny 1840 [synonym]
Fm. †Cenoceratidae Tinant and Kabamba 1983
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