Nautical Oval Mammoth Tooth RingWild, naturally patterned fossil mammoth tooth oval cabochon with a nautical swimming fish setting and wide sterling silver nautical shank. Each ring is a one of a kind due to the natural patterns of our fossil materials. Mammoth molar fossils are mainly found in the cold northern regions of Siberia, Russia, Alaska, and Canada, and generally range in age from 10,000 to 200,000 years. The woolly mammoth had 4 molars at one time that were used to grind