9.7" Very Large Cut & Polished Ammonite Fossil - Madagasar

This is a 9.7" wide, cut and polished ammonite (Cleoniceras) fossil from Madagascar. It exhibits gorgeous mineralization within the chambers, each separated by white calcite septa (divisions). Some of the chambers are still hollow and lined with yellow-orange calcite crystals. Getting fossils of Cleoniceras this large is quite unusual.

Comes with a pair of 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.
Cleoniceras sp.
Ambatolafia, Mahajanga Province, Madagascar
9.7" wide (each half)
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