Bargain, 8.2" Agatized Ammonite Fossil (Half)

Here is an cut and polished Cleoniceras ammonite fossil from the Cretaceous of Madagascar. Some of the chambers are hollow and filled with crystals, like a fossil geode, while many of them are filled with grey sediment that washed in prior to fossilization.

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. Ammonites appeared in the fossil record about 240 million years. The last lineages disappeared 65 million years ago at the end of the Cretaceous.

Ambatolafia, Mahajanga Province, Madagascar
8.2" wide
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.