Institute for Biodiversity Science and Sustainability

CAS Fossil Collection Database

Filter: Genus=%Helisoma%; Sort by:   Accession #   Taxon   Locality
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Accession Number 12526.00   Country USA
Taxon Helisoma ammon State/Prov./Dist. California
InformalName gastropod County San Bernardino
Type Status VOUCHER Formation
Author / Date Hanna, 1963 Age PLEISTOCENE

Accession Number 61973.03   Country USA
thumbnail of image of CAS-GEO 61973.03 Helisoma (Perrinilla) cordillerana LECTOTYPE side 1
side 1
thumbnail of image of CAS-GEO 61973.03 Helisoma (Perrinilla) cordillerana LECTOTYPE side 2
side 2
Taxon Helisoma (Perrinilla) cordillerana State/Prov./Dist. Nevada
InformalName gastropod County Mineral
Type Status LECTOTYPE Formation Esmeralda
Author / Date Hannibal, 1912 Age MIOCENE

Accession Number 61988.01   Country USA
Taxon Helisoma (Perrinilla) cordillerana State/Prov./Dist. Nevada
InformalName gastropod County Esmeralda
Type Status VOUCHER Formation Esmeralda
Author / Date Hannibal, 1912 Age MIOCENE

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
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