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Ammonite Shell Fossil

$ 85.00

These marine mollusks existed throughout the Mesozoic Era, which is an interval of geological time from about 252 to 66 million years ago.  This fossil is 4" wide and 3 1/4" long.  It is cut in half and polished to show the inside sections, called "Septa".  The other side is raw and shows the texture of the outside of the shell.  This is a fossil, so all organic material has been replaced by rock over time, this rock appears to be agate and crystal.