Genuine Ammonite Fossil

This authentic ammonite fossil measures between 5 to 7 inches wide and is part of a collection. Each specimen is unique, with color and markings that may vary from the photo. Ammonites were marine invertebrates with coiled, chambered shells and are ancient relatives of today’s squids and octopuses. These creatures thrived from the Permian Period through the Mesozoic Era, becoming extinct around 66 million years ago at the end of the Cretaceous.