12.5" Cut & Polished Ammonite (Pachydiscus) Fossil - Madagascar

This is a massive 12.5" wide polished ammonite fossil of the genus Pachydiscus, collected from Befandriana in Northern Madagascar. It makes for a very impressive display on the included metal display stands.

You rarely get ammonites of this size and condition of out Madagascar. While it does have some repair work, this is to be expected on large ammonites that will be found already fractured in the ground.

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.

Pachydiscus sp.
Befandriana, Northern Madagascar
12.5 x 9.7", 16 lbs
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