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Some examples of elongate stone tools (scale in cm). (a) Solutrean point (modified after de Mortillet [42] and Geneste and Plisson [43]). (b) Upper Palaeolithic Chatelperron point, after Burkitt [44]. (c) Elongate Middle Palaeolithic point of the Hummalian, after J.-M. Le Tensorer [45]. (d) Elongate Middle Stone Age point from Kenya (after Leakey [46]). (e) Blades from Kapthurin, Kenya (author).
