13.7" Orange, Crystal Filled, Cut Ammonite Fossil - Jurassic

This is a large, 13.7" wide, cut and polished ammonite fossil collected in the Tulear Province of Madagascar. Most of the cut and polished ammonites that you see from Madagascar are Cretaceous in age, but these with orange/yellow/pink coloration are are Late Jurassic (Oxfordian Stage) in age, nearly 50 million years older.

The previously hollow chambers of the ammonite became filled with crystals after the ammonite fossilized creating almost a geode like structure. The ammonite has been cut in half and polished to reveal these crystal filled chambers. The back side of the ammonite has been stabilized with epoxy.

It comes with a pair of metal display stands.

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
Unidentified
LOCATION
Sakaraha, Tulear Province, Madagascar
SIZE
13.7" wide (each half)
ITEM
#168534
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