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Patterns of change and continuity in ochre use during the late Middle Stone Age of the Horn of Africa: The Porc-Epic Cave record

Fig 3

Spatial distribution of ochre pieces, ochre processing tools and ochre-stained artefacts.

Bubble sizes reflect the frequency of ochre pieces per grid unit. Numbers indicate ochre processing tools and ochre-stained artefacts (OSA) when indicated. Modified after [38] under a CC BY license, with permission from PLOS ONE, original copyright 2016.

Fig 3

doi: https://doi.org/10.1371/journal.pone.0177298.g003