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CAS Fossil Collection Database

Accession Number 9829.00   Country USA
thumbnail of image of CAS-GEO 9829.00 Helisoma (Perrinilla) cordillerana PARATYPE
Taxon Helisoma (Perrinilla) cordillerana State/Prov./Dist. Nevada
InformalName gastropod County Mineral
Type Status PARATYPE Formation Esmeralda
Author / Date Hannibal, 1912 Age MIOCENE