AMM288 Ammonite Polished Pair

This ammonite specimen comes from the coast of Madagascar and has been cut and polished to reveal the intricate patterns of the inner fused chambers of the shell. The pair shows dark to golden browns, yellow calcite crystals, and distinct white suture lines.  Pictured: Polished Surface: Weight:  Left 12.1cm x 10.1cm 5.4oz Right 12.1cm x 10.1cm 6.3oz 11.7oz together Ammonites are prehistoric nautilus related to the modern day nautilus, squid, and octopus family. These squid-like creatures lived in the sea between 65 - 415 millions years ago. Ammonites are classified as cephalopods because their heads and tentacles protrude from the same opening; they grew by building larger chambers on their shells. Some species have been found at almost 6 feet in diameter, but they may have reached up to 9 feet!