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Were Rivers Flowing across the Sahara During the Last Interglacial? Implications for Human Migration through Africa

Figure 2

Simulated probability of surface water during the last interglacial.

This figure details Archaeological sites, and an annual probability that a location has surface water. The archaeological data are derived from a number of sources (including [42], [66], [67], [68]. The findspots are characterised by Aterian and Middle Stone Age artefacts such as bifacial foliates and stemmed Aterian points and/or typical ‘Mousterian’ points, side scrapers and Levallois technology. Most are represented by surface scatters but where stratified examples exist these can be shown by dating (OSL and U-series techniques) and geomorphological setting to belong within MIS 5e [41], [42].

Figure 2

doi: https://doi.org/10.1371/journal.pone.0074834.g002