KNM-ER 1472 is the identifying "serial number" given to a thigh bone that is identical to one of modern man. That this bone was found in the same stratum as Homo habilis fossils, but a few kilometers away from them, led to the false interpretation that H. habilis was a two-legged creature. The fossil OH 62, discovered in 1987, showed that contrary to what had been thought H. habilis did not walk on two legs. KNM-ER 1472 was thus included under the classification Homo erectus. (See Homo erectus.)