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CAS Fossil Collection Database

Accession Number 66323.01   Country USA
thumbnail of image of CAS-GEO 66323.01 Shasticrioceras hesperum HOLOTYPE
Taxon Shasticrioceras hesperum State/Prov./Dist. California
InformalName ammonite County Shasta
Type Status HOLOTYPE Formation Horsetown
Author / Date Anderson, 1938 Age CRETACEOUS