A 1 troy ounce rose gold-plated silver coin depicting a synapsida was released by the Central Bank of Mongolia. The Synapsida, volume 8 in the groundbreaking Evolution of Life series, is awe-inspiring because of the remarkable new relic it brings from deep time. The extinct synapsids in the genus Edaphosaurus earned the nickname "pavement lizard" due to the genus's densely packed teeth. From the end of the Carboniferous to the beginning of the Permian, it travelled the globe (318 million to 271 million years ago). The short, low skull and blunt, conical teeth of the primitive herbivorous relative of mammals helped it grow to a body length of over 3.5 meters. However, the large "sail" on its back stood out the most. Researchers are unsure of the purpose of these sails, but some possibilities include camouflage, protection from predator attacks, temperature regulation, sexual display, and species recognition. The Synapsida 1 troy ounce rose gold-plated silver coin features a high relief design. Just 999 coins will ever be struck for the entire world. You will receive a presentation box and a Certificate of Authenticity with your coin.
