Stunning Mantelliceras Ammonite Specimen. Specimens are approximately 4-4.5"L x 3.5"W x mant2.25"H Ammonites were once the most abundant animals of the ancient seas. These marine animals lived over 416 million years ago. Closely resembling squid, their name is derived from their spiral shape as their fossilized shells somewhat resemble tightly-coiled rams’ horns. These ancient fossils are symbols of change & positive motion, helping to stimulate the life force within. The pictures in this listing are representative of the variations in size, texture & color. A unique specimen will be chosen for you! Fossil Mantelliceras Ammonite, Cretaceous Fossil, Moroccan Ammonite Natural Home Decor, 4-4.5"x3.5"x2.25"