1.9-million- and 2.4-million-year-old artifacts and stone tool–cutmarked bones from Ain Boucherit, Algeria

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Science  29 Nov 2018:
DOI: 10.1126/science.aau0008
  • Fig. 1 Location of Ain Boucherit, stratigraphy and magnetostratigraphic data of the site.

    Magnetostratigraphy is expressed with the Virtual Geomagnetic Pole (VGP) latitudinal position. Solid line connects the averaged VGP position when several specimens are used, and data from the upper 22 m (section B) modified from (9), while those below 22 m from section A.

  • Fig. 2 Sediment accumulation rate values for the Ain Boucherit section and interpolated numerical ages obtained for AB-Lw and AB-Up.

    AB-Lw and AB-Up are indicated with open squares. The thickness of the grey line and the vertical error bar on the individual points display the depth uncertainty (ca. 1m from 0 to 22 m and ca. 2m below). See further explanations in supplementary text S1 (12). SAR, sediment accumulation rate.

  • Fig. 3 Oldowan artifacts.

    (A and B) Oldowan artifacts from AB-Lw [(A), images 1 to 8] and AB-Up [(B), images 9 to 17], including unifacial cores on limestone (1 and 9); bifacial core made of limestone (10) and on flint (2); polyhedral cores on limestone (11 and 12); subspherical core on limestone (3); whole flakes on flint (7, 16, and 17) and on limestone (4, 5, 6, 13, and 14); and retouched pieces on flint (8 and 15).

  • Fig. 4 Evidence of hominin activity from Ain Boucherit faunal assemblages.

    (A and B) Slicing mark on a medium size bovid humerus shaft from AB-Lw (A) with SEM micrograph detail (B). (C and D) Cutmarked equid calcaneum from AB-Lw (C) with SEM micrograph detail (D). (E) Hammerstone percussed medium size long bone from AB-Lw. (F) Bone flake from AB-Up. (G) Equid tibia from AB-Up showing cortical percussion notch.

Supplementary Materials

  • 1.9-million- and 2.4-million-year-old artifacts and stone tool–cutmarked bones from Ain Boucherit, Algeria

    Mohamed Sahnouni, Josep M. Parés, Mathieu Duval, Isabel Cáceres, Zoheir Harichane, Jan van der Made, Alfredo Pérez-González, Salah Abdessadok, Nadia Kandi, Abdelkader Derradji, Mohamed Medig, Kamel Boulaghraif, Sileshi Semaw

    Materials/Methods, Supplementary Text, Tables, Figures, and/or References

    Download Supplement
    • Materials and Methods
    • Supplementary Text
    • Figs. S1 to S14
    • Tables S1 to S10
    • References

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