Flashy Red Sliced Natural Ammonite Fossil Keychain!
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These are flashy red ammonite fossils from Madagascar that have been sliced to show off the agatized flashy chambers. There are several different species represented, and one is selected by hand to be fashioned into a keychain. These ammonites inhabited the shallow seas nearly 110 million years ago. They average in size between 1" to 1-1/2" wide and 1/4" to 1/2" thick.
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.