Ursus uralensis (Extinct Giant Cave Bear)Pleistocene (1.8 million - 8,000 years ago) - approx 50,000 Years Old (per receipt)Ural Mountains (Tagna cave, East Sayan, near Perm), Siberia, Russia [Lat 53° 56' 6N, 100° 25' 13E, elev 1797]