07534 - Beautiful Pyritized 0.49 Inch Olcostephanus sp Lower Cretaceous Ammonites
$18.13
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$18.13
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07534 - Beautiful Pyritized 0.49 Inch Olcostephanus sp Lower Cretaceous Ammonites
$18.13
Sale price
$18.13
Regular price
$24.50
† Olcostephanus sp, Neumayr (1875) - Ammonite
Cephalopoda - Ammonoidea - Olcostephanidae
It is naturally pyritized. It has undergone a taphonomic process of permineralization in Iron Sulfide (Pyrite). Permineralization is a process of fossilization in which mineral deposits form internal casts of organisms.