Classification of Yochelson 1977

Cl. Gastropoda Cuvier 1795 [snail]
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Superfm. †Bellerophontacea M'Coy 1851
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G. †Phragmolites Conrad 1838
G. †Tetranota Ulrich and Scofield 1897
Superfm. †Euomphalacea White 1877
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G. †Lytospira Koken 1896
Superfm. Pleurotomariacea Swainson 1840
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G. †Loxoplocus Fischer 1885
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Subg. †Loxoplocus (Lophospira) Whitfield 1886