Mongolia – 2022 – 500 Togrog – Synapsida Evolution of Life


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Issuing Country Mongolia
Year of Issue 2022
Face Value 500 Togrog
Metal Silver
Fineness (purity) 999/1000
Weight 1 oz
Diameter 38.61 mm
Quality Antique finish
Mintage 999 pcs
Scope of Delivery Box
Special features Antique finish, smartminting, high relief and gilding


The 8th edition of the unrivalled Evolution of Life series stuns with a remarkable new representative of a distant past. Edaphosaurus, meaning «pavement lizard» for its dense clusters of teeth, is a genus of extinct synapsids. It roamed the earth from Late Carboniferous to the Early Permian period (318 million to 271 million years ago). The primitive herbivorous relative of mammals reached a body length of over 3.5 metres, with a short, low skull and blunt, conical teeth. The most distinctive feature, however, was the large «sail» on its back. While its function is still in dispute, researchers speculate such sails could have provided camouflage, protection against predator attacks, regulation of body temperature, or sexual display and species recognition.