In 1965, a research team led by Bryan Patterson from Harvard University discovered a single arm bone (KNM-KP 271) of an early human at Kanapoi in northern Kenya, but without additional fossils Patterson could not confidently identify the species to which it belonged. In 1994 Meave Leakey and her team found numerous teeth and fragments of bone at the same site, which they identified as a new species. This they named Australopithecus anamensis (‘anam’ means ‘lake’ in the Turkana language). Researchers have since found other Au. anamensis fossils at nearby sites (including Allia Bay), all of which date between about 4.2 million and 3.9 million years old. With I. McDougall and A. Walker.