Classification of Knight 1931
G. †Auriptygma Perner 1903
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†Auriptygma simplex Knight 1931
†Auriptygma subtilistriatum Knight 1931
†Auriptygma virgatum Knight 1931
G. †Ceraunocochlis Knight 1931
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†Ceraunocochlis blatta Knight 1931
†Ceraunocochlis fulminula Knight 1931
G. †Soleniscus Meek and Worthen 1860
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Subg. †Soleniscus (Bulimorpha) Whitfield 1882
Subg. †Soleniscus (Cylindritopsis) Gemmellaro 1889
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†Soleniscus (Cylindritopsis) vaningeni Knight 1931
Subg. †Soleniscus (Macrochilina) Bayle 1880
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†Soleniscus (Macrochilina) altonensis McChesney 1865
†Soleniscus (Macrochilina) humilis Keyes 1888
†Soleniscus (Macrochilina) intercalaris Meek and Worthen 1860
†Soleniscus (Macrochilina) medialis Meek and Worthen 1860
†Soleniscus (Macrochilina) paludinaeformis Hall 1858
†Soleniscus (Macrochilina) ponderosa Swallow 1858
†Soleniscus (Macrochilina) primigenius Conrad 1835
†Soleniscus (Macrochilina) regularis Cox 1857
†Soleniscus (Macrochilina) welleri Knight 1931
Subg. †Soleniscus (Soleniscus) Meek and Worthen 1860
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†Soleniscus (Soleniscus) typicus Meek and Worthen 1860
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Invalid names: Loxonema nitidula Meek and Worthen 1860 [synonym]