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Evidence for stone-tool-assisted consumption of animal tissues before 3.39 million years ago at Dikika, Ethiopia


The oldest direct evidence of stone tool manufacture comes from Gona (Ethiopia) and dates to between 2.6 and 2.5 million years (Myr) ago1. At the nearby Bouri site several cut-marked bones also show stone tool use approximately 2.5 Myr ago2. Here we report stone-tool-inflicted marks on bones found during recent survey work in Dikika, Ethiopia, a research area close to Gona and Bouri. On the basis of low-power microscopic and environmental scanning electron microscope observations, these bones show unambiguous stone-tool cut marks for flesh removal and percussion marks for marrow access. The bones derive from the Sidi Hakoma Member of the Hadar Formation. Established 40Ar–39Ar dates on the tuffs that bracket this member constrain the finds to between 3.42 and 3.24 Myr ago, and stratigraphic scaling between these units and other geological evidence indicate that they are older than 3.39 Myr ago. Our discovery extends by approximately 800,000 years the antiquity of stone tools and of stone-tool-assisted consumption of ungulates by hominins; furthermore, this behaviour can now be attributed to Australopithecus afarensis.

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Figure 1: Geographic and stratigraphic location of DIK-55.
Figure 2: Stone-tool-inflicted marks on DIK55-2, a rib of a probably size 4 or larger ungulate.
Figure 3: Stone-tool-inflicted marks on DIK-55-3, a femur shaft of a size 2 young bovid.

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  1. Semaw, S. et al. 2.5-million-year-old stone tools from Gona, Ethiopia. Nature 385, 333–336 (1997)

    Article  ADS  CAS  Google Scholar 

  2. de Heinzelin, J. et al. Environment and behavior of 2.5-million-year-old Bouri hominids. Science 284, 625–629 (1999)

    Article  ADS  CAS  Google Scholar 

  3. Wynn, J. G. et al. Geological and palaeontological context of a Pliocene juvenile hominin at Dikika, Ethiopia. Nature 443, 332–336 (2006)

    Article  ADS  CAS  Google Scholar 

  4. Wynn, J. G. et al. in The Geology of Early Humans in the Horn of Africa (eds Quade, J. & Wynn, J. G.) 87–118 (GSA, 2008)

    Google Scholar 

  5. Alemseged, Z. et al. A juvenile early hominin skeleton from Dikika, Ethiopia. Nature 443, 296–301 (2006)

    Article  ADS  CAS  Google Scholar 

  6. Alemseged, Z. et al. A new hominin from the Basal Member of the Hadar Formation, Dikika, and its geological context. J. Hum. Evol. 49, 499–514 (2005)

    Article  Google Scholar 

  7. Blumenschine, R. J., Marean, C. W. & Capaldo, S. D. Blind tests of inter-analyst correspondence and accuracy in the identification of cut marks, percussion marks, and carnivore tooth marks on bone surfaces. J. Archaeol. Sci. 23, 493–507 (1996)

    Article  Google Scholar 

  8. Capaldo, S. D. & Blumenschine, R. J. A quantitative diagnosis of notches made by hammerstone percussion and carnivore gnawing on bovid long bones. Am. Antiq. 59, 724–748 (1994)

    Article  Google Scholar 

  9. Pickering, T. R. & Egeland, C. P. Experimental patterns of hammerstone percussion damage on bones: implications for inferences of carcass processing by humans. J. Archaeol. Sci. 33, 459–469 (2006)

    Article  Google Scholar 

  10. Pickering, T. R., Egeland, C. P., Domínguez-Rodrigo, M., Brain, C. K. & Schnell, A. G. Testing the “shift in the balance of power” hypothesis at Swartkrans, South Africa: hominid cave use and subsistence behavior in the Early Pleistocene. J. Anthropol. Archaeol. 27, 30–45 (2008)

    Article  Google Scholar 

  11. Chavaillon, J. in Earliest Man and Environments in the Lake Rudolf Basin (ed. Coppens, Y.) 565–573 (Chicago Univ. Press, 1976)

    Google Scholar 

  12. Kibunjia, M. Pliocene archaeological occurrences in the lake Turkana Basin, Kenya. J. Hum. Evol. 27, 159–171 (1994)

    Article  Google Scholar 

  13. Kimbel, W. H. et al. Late Pliocene Homo and Oldowan tools from the Hadar Formation (Kada Hadar Member), Ethiopia. J. Hum. Evol. 31, 549–561 (1996)

    Article  Google Scholar 

  14. Roche, H. et al. Early hominid stone tool production and technical skill 2.34 Myr ago in West Turkana, Kenya. Nature 399, 57–60 (1999)

    Article  ADS  CAS  Google Scholar 

  15. Kimbel, W., Rak, Y. & Johanson, D. The Skull of Australopithecus afarensis (Oxford Univ. Press, 2004)

    Google Scholar 

  16. Panger, M. A., Brooks, A. S., Richmond, B. G. & Wood, B. Older than the Oldowan? Rethinking the emergence of hominin tool use. Evol. Anthropol. 11, 235–245 (2002)

    Article  Google Scholar 

  17. Gifford-Gonzalez, D. Bones are not enough: analogues, knowledge, and interpretive strategies in zooarchaeology. J. Anthropol. Archaeol. 10, 215–254 (1991)

    Article  Google Scholar 

  18. Domínguez-Rodrigo, M. & Barba, R. New estimates of tooth mark and percussion mark frequencies at the FLK Zinj site: the carnivore-hominid-carnivore hypothesis falsified. J. Hum. Evol. 50, 170–194 (2006)

    Article  Google Scholar 

  19. Domínguez-Rodrigo, M. & Barba, R. Five more arguments to invalidate the passive scavenging version of the carnivore-hominid-carnivore model: a reply to Blumenschine et al. (2007a). J. Hum. Evol. 53, 427–433 (2007)

    Article  Google Scholar 

  20. Behrensmeyer, A. K., Gordon, K. D. & Yanagi, G. T. Trampling as a cause of bone surface damage and pseudo-cutmarks. Nature 319, 768–771 (1986)

    Article  ADS  Google Scholar 

  21. Domínguez-Rodrigo, M., de Juana, S., Galán, A. & Rodríguez, M. A new protocol to differentiate trampling marks from butchery cut marks. J. Archaeol. Sci. 36, 2643–2654 (2009)

    Article  Google Scholar 

  22. Njau, J. K. & Blumenschine, R. J. A diagnosis of crocodile feeding traces on larger mammal bone, with fossil examples from the Plio-Pleistocene Olduvai Basin, Tanzania. J. Hum. Evol. 50, 142–162 (2006)

    Article  Google Scholar 

  23. Bunn, H. T. Archaeological evidence for meat-eating by Plio-Pleistocene hominids from Koobi Fora and Olduvai Gorge. Nature 291, 574–577 (1981)

    Article  ADS  Google Scholar 

  24. Blumenschine, R. J. & Selvaggio, M. M. Percussion marks on bone surfaces as a new diagnostic of hominid behaviour. Nature 333, 763–765 (1988)

    Article  ADS  Google Scholar 

  25. White, T. D. Prehistoric Cannibalism at Mancos 5MTUMR-2346 (Princeton Univ. Press, 1992)

    Book  Google Scholar 

  26. Fisher, J. W. J. Bone surface modifications in zooarchaeology. J. Archaeol. Method Theory 2, 7–68 (1995)

    Article  Google Scholar 

  27. Bello, S. M. & Soligo, C. A new method for the quantitative analysis of cutmark micromorphology. J. Archaeol. Sci. 35, 1542–1552 (2008)

    Article  Google Scholar 

  28. Campisano, C. J. Tephrostratigraphy and Hominin Paleoenvironments of the Hadar Formation, Afar Depression, Ethiopia. PhD thesis, Rutgers Univ. (2007)

    Google Scholar 

  29. Lisiecki, L. E. & Raymo, M. E. A. Plio-Pleistocene stack of 57 globally distributed benthic δ18O records. Paleoceanography 20, 522–533 (2005)

    Google Scholar 

  30. Dupont-Nivet, G. et al. in The Geology of Early Humans in the Horn of Africa (eds Quade, J. & Wynn, J. G.) 67–85 (GSA, 2008)

    Google Scholar 

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We thank the Authority for Research and Conservation of Cultural Heritage, the National Museum of Ethiopia, the Ministry of Tourism and Culture and the Afar regional government for permits and support; C. Mesfin, Z. Bedaso, T. Gebreselassie, Mesfin Mekonnen, H. Defar, A. Zerihun, G. Senbeto, Mogues Mekonnen, W. Aberra, T. Yifru and the people of the Dikika area for field assistance. We also thank the administration of Adaytu town and members of the Ethiopian armed forces. Funds for the 2009 field season were provided by the California Academy of Sciences. Travel expenses for D.G., S.P.M., D.R. and J.G.W. were covered by their respective institutions. C.W.M. and H.A.B. acknowledge the assistance of the research professionals in the John M. Cowley Center for High Resolution Electron Microscopy, LE-CSSS, ASU in conducting the ESEM imaging, and J. Thompson and S. Lansing for participating in the blind test. Z.A. thanks P. Mollard and K. Berge for assistance during fieldwork preparations.

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Authors and Affiliations



S.P.M. is the project archaeologist. Z.A. is the head of the project and palaeoanthropologist. C.W.M. described and analysed the fossil bone specimens and surface modifications. J.G.W. is the project geologist. Fauna were analysed by Z.A., D.R. (micromammals and GIS), D.G. (biostratigraphy), R.B. (palaeoenvironments). H.A.B. conducted the ESEM/SEI/EDX study. All authors contributed to the writing of this paper.

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Correspondence to Shannon P. McPherron.

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The authors declare no competing financial interests.

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Supplementary Information

This file contains Supplementary Information comprising: 1 Survey Methodology; 2 Faunal list; 3 Stratigraphic and palaeoenvironmental context; 4 Surface modifications on the fossil specimens; Supplementary Figures 1- 23 with legends; Supplementary Tables 1- 3 and References. (PDF 12974 kb)

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McPherron, S., Alemseged, Z., Marean, C. et al. Evidence for stone-tool-assisted consumption of animal tissues before 3.39 million years ago at Dikika, Ethiopia. Nature 466, 857–860 (2010).

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