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22409 - Well Preserved Pyritized 0.87 Inch Unidentified Lower Cretaceous Ammonites Primitive tools Case and D

SKU: 3461347366
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Description

Case and D

The Mohs scale of mineral hardness

Tajikistan

K/T Boundary Latest Cretaceous Gubbio Umbria Italy Dinosaur Extinction Stratigraphical Level

22409 - Well Preserved Pyritized 0.87 Inch Unidentified Lower Cretaceous Ammonites Primitive tools Case and DUnidentified species. His suture lines are wonderfully well detailed. 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.

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