Later, another even earlier version of "Homo sapiens" was found by a team led by Richard Leakey. These remains were from Omo National Park, Ethiopia. A 2005 potassium-argon dating of volcanic tuff associated with the remains showed them to date from about 195,000 years ago, even older than the "idaltu" fossils. These Omo remains are the earliest known remains of 'anatomically modern humans', that is, modern man. Leakey and his team have not given the remains a subspecific name. They are just called "Omo remains of "Homo sapiens"".