The Turkana Basin in northern Kenya and southwestern Ethiopia is one of the world's largest and most significant fossil repositories, especially of the last 4.5 million years of human evolution. The past 50 years of research by many teams have produced nearly 600 individual hominin fossils and over 60,000 vertebrate fossils from the basin, a record of East Africa's changing climates, environments, and species. Key fossil discoveries such as
Australopithecus anamensis
,
Kenyanthropus platyops
,
Homo habilis
, and
Homo rudolfensis
, together with the nearly complete “Turkana Boy”
Homo erectus
skeleton, have played a critical role in developing our current understanding of hominin evolution. In addition to fossil finds, the Turkana Basin has produced important archaeological and trace discoveries that inform our understanding of hominin behavioral evolution.