This Specimen has been sold.
Beautiful 4 Inch Polished Cleoniceras Ammonite
This is a beautiful polished Cleoniceras from Madagascar. This exotic ammonite displays the spectacular red-mahogany, "oak leaf" suture pattern of this species. It is a very asthetic example of this 110 million year old fossil mollusk.
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.