Mammoth Skull EarringsSpectacularly detailed hand carved fossil mammoth ivory skull earrings are set with our signature rhodium plated sterling silver essentials setting and posts. 5 8 tall Prehistoric woolly mammoth ivory is found in the cold northern regions of Alaska, Canada, Russia, and Siberia. These fossil tusk materials may range in age from 10,000 to 200,000 years, and natural colors vary in shades of cream, tan, brown and, very rarely, blue and green. Designed by