Ammonite Pair Polished

Ammonite Pair Polished Fossil. Ammonites have segments that are crystalline, sedimentary, or calcified. A fossilized sea squid species, precisely cut in half and polished to show detail and sheen. Ammonites from Madagascar are Triassic to Cretaceous in age and lived between 400 and 350 million years ago, during the Devonian Period of the Paleozoic Era.