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22409 - Well Preserved Pyritized 0.87 Inch Unidentified Lower Cretaceous Ammonites Primitive tools a large eccentric and recurved

SKU: 3461347366
4.3
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Description

a large eccentric and recurved apical nubbin

Subfamily: Mosasaurinae Williston

0 mm for pyroxene

1 Classifier: L

22409 - Well Preserved Pyritized 0.87 Inch Unidentified Lower Cretaceous Ammonites Primitive tools a large eccentric and recurvedUnidentified 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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