Pyritized Kosmoceras Ammonite Fossil

Name: Kosmoceras spinosum

Geologic Time: Jurassic, Oxfordian Stage

Size (25.4 mm = 1 inch): 18 mm diameter

Fossil Site: Oxford Clay, City of Oxford, England

Fossil Code: AAF373

Price: $40.00 - sold


Description: A magnificent example of the ammonite Kosmoceras spinosum. of the Oxfordian Stage (156 m.y.a) deposits of England. Ammonites of this degree of preservation are difficult to come across. The specimen has been preserved as pyrite, indicative of an anoxic preservational environment. This one has been prepared free of matrix to provided you with perspectives from every aspect.

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