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This Specimen has been sold.
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9" Heteromorph Ammonite Fossil - Volga River, Russia
This is a very impressive and lustrous heteromorph ammonite fossil, quarried from the Volga River region of Russia. This specimen exhibits extensive opalescent mother-of-pearl along with diffuse pyritization. The ammonite itself is 9" tall, and including the rock which has been sculpted to create a free standing base it's 11.2" tall
There is some restoration on the ammonite, about 10% This is typical for most Audiloceras ammonites sold from this region.
Most ammonites are homomorphs meaning that they retain their spiral shell shape throughout growth. Heteromorph (different shaped) ammonites developed during the late jurassic and have uncoiled shells. It's hard to imagine how this shape would have given them a evolutionary advantage as it would have hindered fast movement.
There is some restoration on the ammonite, about 10% This is typical for most Audiloceras ammonites sold from this region.
Most ammonites are homomorphs meaning that they retain their spiral shell shape throughout growth. Heteromorph (different shaped) ammonites developed during the late jurassic and have uncoiled shells. It's hard to imagine how this shape would have given them a evolutionary advantage as it would have hindered fast movement.
SPECIES
Audouliceras sp.
LOCATION
Volga river, Ulyanovsk region, Russia
SIZE
9" tall, 11.2" including stone base
CATEGORY
SUB CATEGORY
ITEM
#47626
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