Mongolia – Saiga Antelope – 500 Tugrik – 2011 – Proof Colored Silver Crown – COA – The Saiga Antelope (Saiga tatarica) is a critically endangered species which originally inhabited a vast area of the Eurasian steppe zone from the foothills of the Carpathians and Caucasus into Dzungaria and Mongolia. The Mongolian subspecies (Saiga tatarica mongolica) is found only in western Mongolia.