Ammonites inhabited the planet almost twice as long as dinosaurs. They were around for more than 300 million years before a mass extinction event around 66 million years ago. Now ammonite fossils provide a wealth of information to scientists who date rocks and study prehistoric life. Ammonites are good index fossils for the Cretaceous Period because they are found in many types of marine sedimentary rocks and they evolved rapidly, so each species had a relatively short lifespan. This ammonite comes from the Mahajanga province of Madagascar and dates back to the Cretaceous Period (approximately 110 million years ago). It is opalescent and shimmers beautifully. It is about 2 inches wide and weighs 53 grams. You will receive the item pictured in this listing, which is product of nature and includes natural imperfections. View our entireammonite collection!
