7.3" Sliced Ammonite (Speetoniceras) With Druzy Pyrite

This is an absolutely beautiful, 7.3" wide Speetoniceras versicolor ammonite fossil from the Lower Cretaceous deposits of the Volga River in Russia. It has been sliced in half, and polished revealing the inner chamber structure. The chambers are filled with deep pockets of druzy pyrite crystals.

Ammonites were predatory cephalopod mollusks that resembled squids with spiral shells. They are more closely related to living octopuses, though their shells resemble that of nautilus species. True ammonites appeared in the fossil record about 240 million years ago during the Triassic Period. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

What an ammonite would have looked like while alive.
What an ammonite would have looked like while alive.
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DETAILS
SPECIES
Speetoniceras versicolor
LOCATION
Volga river, Ulyanovsk region, Russia
SIZE
7.3" wide
CATEGORY
SUB CATEGORY
ITEM
#34580
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