15.4" Sliced Speetoniceras Ammonite With Druzy Pyrite

 
 
This is an large, 15.4" wide Speetoniceras 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. The outer side of the ammonite has been nicely prepared to expose the well defined external structure. This is a gorgeous display piece.

There has been some restoration and repair to the ammonite. Several cracks have been repaired and filled on the backside and it's likely some of the pyrite has been added.

Ammonites were predatory mollusks that resembled a squid with a shell. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a living octopus, though the shells resemble that of a nautilus. Ammonites appeared in the fossil record about 240 million years. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

DETAILS
SPECIES
Speetoniceras versicolor
LOCATION
Volga river, Ulyanovsk region, Russia
SIZE
15.4" wide
CATEGORY
SUB CATEGORY
ITEM
#37862
GUARANTEE
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.