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CAS Fossil Collection Database

Accession Number 27838.11   Country USA
thumbnail of image of CAS-GEO 27838.11 Mortoniceras (Submortoniceras) pentzanum HOLOTYPE side 1
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thumbnail of image of CAS-GEO 27838.11 Mortoniceras (Submortoniceras) pentzanum HOLOTYPE side 2
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Taxon Mortoniceras (Submortoniceras) pentzanum State/Prov./Dist. California
InformalName ammonite County Butte
Type Status HOLOTYPE Formation Chico
Author / Date Anderson, 1958 Age CRETACEOUS