The Dmanisi skull, also known as Skull 5 or D4500, is one of five Homo erectus skulls discovered in Dmanisi, Georgia. Described in a publication in October 2013, it is believed to be about 1.8 million years old and is the most complete skull of a Pleistocene Homo species,[2] and the first complete adult hominin skull of that degree of antiquity.[3][4] According to researchers, the discovery "provides the first evidence that early Homo comprised adult individuals with small brains but body mass, stature and limb proportions reaching the lower range limit of modern variation."[3]