The oldest Homo sapiens Omo I was about 233,000 years ago. BEIJING, Beijing, 65438+ 10/3 (Reporter Sun Zifa) An archaeological paper recently published by the internationally renowned academic journal Nature said that the remains of Omo and Kibishi from Ethiopia are one of the oldest known Homo sapiens fossils in East Africa, which may be at least 36,000 years earlier than previously thought, and it is estimated to have a history of at least 233,000 years, which is more in line with modern humans. Celine Vidal of Cambridge University in England and her colleagues re-examined the volcanic ash layer above the deposit containing Omo I, and associated the volcanic deposit with a major eruption of the Sala volcano in the Rift Valley in East Africa. Through these analyses, the age of Omo fossils under this ash layer is more accurately determined, which is about 233 thousand years ago.