Genuine Jurassic Ammonite Fossil 7.1"

This polished Jurassic Ammonite Fossil, weighing 3.36 pounds with a 7.1-inch diameter and 2.23-inch thickness, showcases the intricate spiral shell of a marine mollusk that thrived between the Paleozoic and Mesozoic eras. Its chambered structure—used for buoyancy control—offers a direct glimpse into the sophisticated adaptations of these predatory creatures from Earth’s ancient seas. Ideal for collectors and educators, it presents a tangible link to prehistoric marine life.