The auction house plans the Oct. 2 sale as part of a collection of fossils, skeletons, meteors and minerals - and even a dinosaur egg and woolly rhinoceros skeleton - from the Kashiwagi museum in Japan.
Sotheby's said in a statement Thursday that the skeleton of Mammuthus primigenius, from Siberia, dates to the Middle Paleolithic period when Neanderthals roamed the earth. The house estimates it will go for more than €185,000 ($240,000).
The Mammoth skeleton, which has been arranged in a bit of an upward-facing pose, measures 3.5 meters (11 1/2 feet) in height - just slightly taller than it is long.
