Classification of Nützel et al. 2000

Cl. Gastropoda Cuvier 1795 [snail]
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Superfm. †Peruneloidea Frýda and Manda 1997
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Fm. †Imoglobidae Nützel et al. 2000
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G. †Imogloba Nützel et al. 2000
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†Imogloba gandyensis Gordon and Yochelson 1987
Superfm. †Subulitoidea Lindström 1884
Superfm. †Subulitacea Lindström 1884
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Fm. †Meekospiridae Knight 1936
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G. †Auriptygma Perner 1903
G. †Cambodgia Mansuy 1914
G. †Ceraunocochlis Knight 1931
G. †Girtyspira Knight 1936
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†Girtyspira germanica Herholz 1992
G. †Meekospira Ulrich and Scofield 1897
G. †Oxyspira Blodgett and Johnson 1992
Fm. †Soleniscidae Knight 1931
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G. †Bulimorpha Whitfield 1882
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Subfm. †Soleniscinae Knight 1931
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G. †Cylindritopsis Gemmellaro 1889
G. †Globobulimorpha Yoo 1994
G. †Labridens Yochelson 1956
G. †Procerithiopsis Mansuy 1914
G. †Soleniscus Meek and Worthen 1860
G. †Strobeus de Koninck 1881
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Invalid names: Ischnoptygminae Erwin 1988 [empty]
Fm. †Subulitidae Lindström 1884
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G. †Cyrtospira Ulrich and Scofield 1897
G. †Eroicaspira Wagner 1999
G. †Fusispira Hall 1872
G. †Leptoptygma Knight 1936
G. †Subulites Emmons 1842
Subcl. Neritimorpha Golikov and Starobogatov 1975
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G. †Oncochilus von Zittel 1882
Fm. †Pseudozygopleuridae Knight 1930
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G. †Hemizyga Girty 1915
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†Hemizyga decussata Yoo 1988