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. 2020 Aug 14;10:13802. doi: 10.1038/s41598-020-68617-8

Figure 4.

Figure 4

Artefacts on chert nodules. (14) small retouched nodules from layers G and I.Hominins selected small quadrangular nodules for a direct, abrupt and denticulate retouch. (56) unifacial discoid-type cores (layer I2). Removals are centripetal. The preparation of the striking platform is limited or absent. (Photos M-H. Moncel, C. Santagata).