KALIFANO Extinct Natural Ammonite Shell Pair Fossil Stone - Madagascar Genuine Ammonite fossils PAIR with symmetrically divided crystallized spiral interior and beautiful traces of opalescent shell - Beautiful specimens to collect and fun for learning Authentic real Ammonite fossil PAIR dated to be 400 million years old from Madagascar Extinct cousin of sea creature chambered nautilus Includes information card to help study and learn about the ancient Ammonite PAIR Please allow for small variations in color, size, and shape. Size ranges between 1.25 to 1.5 wide and .25 thick