Dear Julien,
I would use Hubrick, L. 1984. The distributions of the native land
mollusks of the eastern United States. Fieldiana, Zoology, new series,
no. 24, i-viii +191pp.
Some Oligocene - Miocene strata in Nebraska yield at least one species
of "helicoid" land snail of questionable generic assignment (it/they
were named by White, I believe, about 100 yrs ago) (I have a big box of
them and will someday attempt to figure out what they really are) and
one species described by Bishop as a Caracolus, a camaenid genus
presently found only in the Greater Antilles, so also questionable...
But it could be...stranger things have happened....
Good luck, Kurtles
Julien Rossignol wrote:
>Hello everyone,
>
> My name is Julien Rossignol, I am a PhD. Student in France, doing a
>research on Nebraska's fossil land snails. I am looking for any information
>about actual land snails assemblages I could compare with my assemblages,
>or any land snails distribution maps of the species I found: Vallonia
>gracilicosta, Discus shimeki, Discus whitneyi, Euconulus fulvus, Columella
>columella, Columella edentula, Vertigo modesta, Vertigo gouldii,
>Succineids, Deroceras sp and Retinella sp. If anybody has some information
>that could be helpfull to me, please let me know.
>thank you for your help
>sincerely
> Julien
>
>http://www.isem.univ-montp2.fr/PAL/PALperso/RossignolHome.php
>
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