Classification of Keidel 1906
G. †Enteletes Waldheim 1825
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†Enteletes hemiplicatus Hall 1852
†Enteletes kayseri Waagen 1884
†Enteletes merzbacheri Keidel 1906
†Enteletes oehlerti Gemmellaro 1899
†Enteletes tschernyscheffi Diener 1897
G. †Schizophoria King 1850
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†Schizophoria resupinata Martin 1809
†Schizophoria supracarbonica Tschernyschew 1902
G. †Marginifera Waagen 1884
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†Marginifera clarkei Tschernyschew 1902
†Marginifera involuta Tschernyschew 1902
†Marginifera pusilla Schellwien 1892
†Marginifera septentrionalis Tschernyschew 1902
G. †Productus
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†Productus cancriniformis Tschernyschew 1889
†Productus cora d'Orbigny 1842
†Productus curvirostris Schellwien 1892
†Productus elegans Norwood and Pratten 1855
†Productus fasciatus Kutorga 1844
†Productus gratiosus Waagen 1884
†Productus gruenewaldti Krotov 1888
†Productus lineatus Waagen 1884
†Productus mammatus Keyserling 1846
†Productus punctatus Martin 1809
†Productus pustulatus Keyserling 1853
†Productus simensis Tschernyschew 1902
†Productus subcostatus Waagen 1884
†Productus tenuistriatus de Verneuil 1845
†Productus uralicus Tschernyschew 1902
G. †Martinia M'Coy 1844
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†Martinia corculum Kutorga 1844
†Martinia glabra Sowerby 1821
G. †Reticularia Frederiks 1915
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†Reticularia dieneri Gemmellaro 1899
†Reticularia lineata Martin 1809
†Reticularia rostrata Kutorga 1842
G. †Spirifer Sowerby 1818
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†Spirifer fasciger Keyserling 1846
†Spirifer lyra Kutorga 1844
†Spirifer supramosquensis Nikitin 1890
†Spirifer tibetanus Diener 1897