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Fossil collection records
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Classification of Ponder and Lindberg 1997
Cl.
Gastropoda
Cuvier 1795 [snail]
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Subcl.
Orthogastropoda
Ponder and Lindberg 1997
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Superor.
Vetigastropoda
Salvini-Plawen 1980
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Superfm.
Trochoidea
Rafinesque 1815
Superor. †
Heterobranchia
Gray 1840
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Superfm.
Pyramidelloidea
Gray 1840
Fm.
Rissoidae
Gray 1847
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G.
Alvania
Risso 1826
G.
Folinia
Crosse 1868
Superor.
Hypsogastropoda
Ponder and Lindberg 1997
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Subor. †
Ptenoglossa
Gray 1853