As was noted by someone earlier, they can be found in the Pleistocene
loess.  I found one box labeled Carychium exile? from Cagles Mill, near
Cunot, Indiana; Atherton Formation, Cagle Loess Member, Kansan,
Pleistocene ,which I collected in 1973.
For references see:
A. Byron Leonard, 1957, Types of Late Cenozoic Gastropods in the Frank
Collins Baker Collection, Illinois State Geological Survey, Report of
Investigations 201.
A. Byron Leonard and John C. Frye, 1960, Wisconsinian Molluscan Faunas of
the Illinois Valley Region, Illinois State Geological Survey, Circular
304.

Allen Aigen  NYC
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On Tue, 3 Mar 2009 23:44:17 +0100 Adrienne Jochum
<[log in to unmask]> writes:
> Dear Fossilfesters,
>
> Are any of you aware of any fossils containing Carychium? Are you
> aware of
> any Carychium fossil sites? I am researching Carychium and these
> would
> provide relevant information.
> Thanks
> AJ

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