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dc.contributor.authorTomlinson, Emma
dc.date.accessioned2023-09-15T08:58:22Z
dc.date.available2023-09-15T08:58:22Z
dc.date.issued2022
dc.date.submitted2022en
dc.identifier.citationVidal CM, Lane CS, Asrat A, Barfod DN, Mark DF, Tomlinson EL, Tadesse AZ, Yirgu G, Deino A, Hutchison W, Mounier A, Oppenheimer C. Age of the oldest known Homo sapiens from eastern Africa. Nature. 2022 Jan;601(7894):579-583en
dc.identifier.otherY
dc.identifier.urihttp://hdl.handle.net/2262/103863
dc.descriptionPUBLISHEDen
dc.description.abstractEfforts to date the oldest modern human fossils in eastern Africa, from Omo-Kibish and Herto in Ethiopia, have drawn on a variety of chronometric evidence, including 40Ar/39Ar ages of stratigraphically associated tuffs. The ages that are generally reported for these fossils are around 197 thousand years (kyr) for the Kibish Omo I, and around 160-155 kyr for the Herto hominins. However, the stratigraphic relationships and tephra correlations that underpin these estimates have been challenged. Here we report geochemical analyses that link the Kamoya's Hominid Site (KHS) Tuff9, which conclusively overlies the member of the Omo-Kibish Formation that contains Omo I, with a major explosive eruption of Shala volcano in the Main Ethiopian Rift. By dating the proximal deposits of this eruption, we obtain a new minimum age for the Omo fossils of 233 ± 22 kyr. Contrary to previous arguments6,8, we also show that the KHS Tuff does not correlate with another widespread tephra layer, the Waidedo Vitric Tuff, and therefore cannot anchor a minimum age for the Herto fossils. Shifting the age of the oldest known Homo sapiens fossils in eastern Africa to before around 200 thousand years ago is consistent with independent evidence for greater antiquity of the modern human lineage.en
dc.language.isoenen
dc.relation.ispartofseriesNature;
dc.rightsYen
dc.titleAge of the oldest known Homo sapiens from eastern Africaen
dc.typeJournal Articleen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/tomlinse
dc.identifier.rssinternalid238535
dc.identifier.doihttp://dx.doi.org/10.1038/s41586-021-04275-8
dc.rights.ecaccessrightsopenAccess
dc.identifier.orcid_id0000-0002-0646-6640


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