This Specimen has been sold.
2 1/2 Inch Flashy Red Iredescent Ammonite
This a beautiful flashy, red iridescent ammonite of the genus Cleoniceras from Mahajanga Province, Madagascar. When the light hits it at certain angles the polished shell really shines with brilliant red hues. The specimen is 2.52 inches wide and is Early Cretaceous (Albian Stage) in age, approximately 110 million years old.
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.