Classification of de Ryckholt 1860

G. †Omphalocirrus de Ryckholt 1860
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†Omphalocirrus goldfussi d’Archiac and de Verneuil 1842
†Omphalocirrus spinosus Sandberger and Sandberger 1854
Cl. Gastropoda Cuvier 1795 [snail]
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G. †Trochotremaria de Ryckholt 1860