Trilobites are an ancient marine animal that flourished some 500 million years ago, and swam around for over 200 million years until The Great Dying. They only exist now is a multitude of fossil remains. They were composed of many diverse types of arthropods but they all get their names from having three lobes to their body structure. They are probably most closely related to modern horse shoe crabs, and they molted their exoskeletons, like lobsters.
Apparently they were one of the first animals to have vision, so we offer this remarkable creature with a variety of gemstone eye options.