Longest mammoth tusk

The single longest mammoth tusk found to date is the tusk of a Columbian mammoth (Mammuthus columbi) excavated in Post, Texas, USA, presented to the American Museum of Natural History in New York City in 1934. Only the anterior end of this specimen is missing, allowing the total length to be conservatively restored at more than 4.9 m (16 ft).

Another partial skull from Texas, also now housed at the American Museum of Natural History, bears a strong contender for the largest pair of mammoth tusks. Preserved with very high completeness with no restored estimation required, both tusks measure around 4.22 m (13 ft 10 in) long.

The largest single woolly mammoth (M. primigenius) tusk, found along north-eastern Siberia’s Kolyma River, measures 4.2 m (13 ft 9.3 in) along the curve and weighs 84 kg (185 lb).