This Specimen has been sold.
Unusual Anapuzosia Ammonite (5.3 Inches)
Here is an unusual, thick Anapuzosia saintursi ammonite from Madagascar. Out of the hundreds of ammonites I've listed from Madagascar this is the first one I've acquired of this species. It's large a 5.3 inches wide and each side is over an inch thick. The chambers show gorgeous mineralization and it displays well on the included stands.
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 ago and they barely survived several major extinction events. The last lineages disappeared 65 million years ago at the end of the Cretaceous.