6.8" Golden Calcite Ammonite (Promicroceras) Cluster - England

This is a 6.8" wide concretion filled with small, golden calcite replaced fossil ammonites of the species Promicroceras planicosta. It was collected from the Black Ven cliff near the town of Charmouth, England. The concretion was painstakingly prepared using mechanical tools to expose the ammonite fossil and bring them out in high relief.

It comes with an acrylic display stand.

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. True ammonites appeared in the fossil record about 240 million years ago. 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.
Promicroceras planicosta
Black Ven, Charmouth, Lyme Regis, Dorset, England
Obtusum Zone
Rock 6.8 x 4.15 x 1.5", Largest ammonite .7" wide
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