Reply to Granger et al.: Multiple, independent lines of evidence suggest Sterkfontein is less than 2.8 My old

Stephen R Frost¹, Frances J White¹, Hailay G Reda¹, Christopher C Gilbert^{2

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Affiliations

¹ Department of Anthropology, University of Oregon, Eugene, OR 97403-1218.
² Department of Anthropology, Hunter College of the City University of New York, New York, NY 10065.
³ PhD Program in Anthropology, Graduate Center of the City University of New York, New York, NY 10016.
⁴ New York Consortium in Evolutionary Primatology, New York, NY.
⁵ Division of Paleontology, American Museum of Natural History, New York, NY 10024.

Comment

Stephen R Frost et al. Proc Natl Acad Sci U S A. 2023.

. 2023 Mar 28;120(13):e2301351120.

doi: 10.1073/pnas.2301351120. Epub 2023 Mar 20.

Stephen R Frost¹, Frances J White¹, Hailay G Reda¹, Christopher C Gilbert^{2

3

4

5}

¹ Department of Anthropology, University of Oregon, Eugene, OR 97403-1218.
² Department of Anthropology, Hunter College of the City University of New York, New York, NY 10065.
³ PhD Program in Anthropology, Graduate Center of the City University of New York, New York, NY 10016.
⁴ New York Consortium in Evolutionary Primatology, New York, NY.
⁵ Division of Paleontology, American Museum of Natural History, New York, NY 10024.

No abstract available

Conflict of interest statement

The authors declare no competing interest.

Biochronology of South African hominin-bearing sites: A reassessment using cercopithecid primates.
Frost SR, White FJ, Reda HG, Gilbert CC. Frost SR, et al. Proc Natl Acad Sci U S A. 2022 Nov 8;119(45):e2210627119. doi: 10.1073/pnas.2210627119. Epub 2022 Oct 24. Proc Natl Acad Sci U S A. 2022. PMID: 36279427 Free PMC article.
Monkey fossils do not negate cosmogenic dating at Sterkfontein.
Granger DE, Stratford D, Bruxelles L, Heaton JL, Pickering TR, Kuman K, Clarke RJ. Granger DE, et al. Proc Natl Acad Sci U S A. 2023 Mar 28;120(13):e2300314120. doi: 10.1073/pnas.2300314120. Epub 2023 Mar 20. Proc Natl Acad Sci U S A. 2023. PMID: 36940323 Free PMC article. No abstract available.

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1. Pickering R., et al. , U-Pb-dated flowstones restrict South African early hominin record to dry climate phases. Nature 565, 226–229 (2019). - PubMed
1. Granger D. E., et al. , New cosmogenic burial ages for Sterkfontein Member 2 Australopithecus and Member 5 Olduwan. Nature 522, 85–88 (2015). - PubMed
1. Granger D. E., et al. , Cosmogenic nuclide dating of Australopithecus at Sterkfontein, South Africa. Proc. Natl. Acad. Sci. U.S.A. 119, e2123516119 (2022). - PMC - PubMed