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dc.contributor.authorDirks, PH
dc.contributor.authorRoberts, EM
dc.contributor.authorHilbert-Wolf, H
dc.contributor.authorKramers, JD
dc.contributor.authorHawks, J
dc.contributor.authorDosseto, A
dc.contributor.authorDuval, M
dc.contributor.authorElliott, M
dc.contributor.authorEvans, M
dc.contributor.authorGrün, R
dc.contributor.authorHellstrom, J
dc.contributor.authorHerries, AI
dc.contributor.authorJoannes-Boyau, R
dc.contributor.authorMakhubela, TV
dc.contributor.authorPlaczek, CJ
dc.contributor.authorRobbins, J
dc.contributor.authorSpandler, C
dc.contributor.authorWiersma, J
dc.contributor.authorWoodhead, J
dc.contributor.authorBerger, LR
dc.date.accessioned2020-12-18T03:27:38Z
dc.date.available2020-12-18T03:27:38Z
dc.date.issued2017-05-09
dc.identifier.citationDirks, P. H., Roberts, E. M., Hilbert-Wolf, H., Kramers, J. D., Hawks, J., Dosseto, A., Duval, M., Elliott, M., Evans, M., Grün, R., Hellstrom, J., Herries, A. I., Joannes-Boyau, R., Makhubela, T. V., Placzek, C. J., Robbins, J., Spandler, C., Wiersma, J., Woodhead, J. & Berger, L. R. (2017). The age of Homo naledi and associated sediments in the Rising Star Cave, South Africa.. Elife, 6, pp.e24231-. https://doi.org/10.7554/eLife.24231.
dc.identifier.issn2050-084X
dc.identifier.urihttp://hdl.handle.net/11343/255779
dc.description.abstractNew ages for flowstone, sediments and fossil bones from the Dinaledi Chamber are presented. We combined optically stimulated luminescence dating of sediments with U-Th and palaeomagnetic analyses of flowstones to establish that all sediments containing Homo naledi fossils can be allocated to a single stratigraphic entity (sub-unit 3b), interpreted to be deposited between 236 ka and 414 ka. This result has been confirmed independently by dating three H. naledi teeth with combined U-series and electron spin resonance (US-ESR) dating. Two dating scenarios for the fossils were tested by varying the assumed levels of 222Rn loss in the encasing sediments: a maximum age scenario provides an average age for the two least altered fossil teeth of 253 +82/-70 ka, whilst a minimum age scenario yields an average age of 200 +70/-61 ka. We consider the maximum age scenario to more closely reflect conditions in the cave, and therefore, the true age of the fossils. By combining the US-ESR maximum age estimate obtained from the teeth, with the U-Th age for the oldest flowstone overlying Homo naledi fossils, we have constrained the depositional age of Homo naledi to a period between 236 ka and 335 ka. These age results demonstrate that a morphologically primitive hominin, Homo naledi, survived into the later parts of the Pleistocene in Africa, and indicate a much younger age for the Homo naledi fossils than have previously been hypothesized based on their morphology.
dc.languageeng
dc.publishereLife Sciences Publications, Ltd
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleThe age of Homo naledi and associated sediments in the Rising Star Cave, South Africa.
dc.typeJournal Article
dc.identifier.doi10.7554/eLife.24231
melbourne.affiliation.departmentSchool of Earth Sciences
melbourne.source.titleeLife
melbourne.source.volume6
melbourne.source.pagese24231-
melbourne.identifier.arcFT130100801
dc.rights.licenseCC BY
melbourne.elementsid1208005
melbourne.openaccess.pmchttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC5423772
melbourne.contributor.authorHellstrom, John
melbourne.contributor.authorWoodhead, Jonathan
dc.identifier.eissn2050-084X
melbourne.identifier.fundernameidAUST RESEARCH COUNCIL, FT130100801
melbourne.accessrightsOpen Access


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