Find the perfect gift with our great choice of ammonite fossils. Ammonites are one of the most recognisable fossils and make beautiful ornaments and gifts. These ammonite fossils are between 135 and 395 million years old. Ammonites were squid-like marine animals that once thrived in all the world's oceans. Our ammonites include beautiful examples with incredible detail that makes them very collectable. Choose from large, collectible examples or take a look at our smaller ammonites, which make lovely children's gifts. We also have a fine choice of fish fossils and trilobite fossils.