Figure S1: Victoria West cores with overshot preferential removals (a, b, c) and small sized removal (d). Note that although the size of specimen a is also small, the preferential removal is still large when compared with the overall size of the core. The yellow arrows show the preparation of the two surfaces, the red arrows show the preferential flake removal directions, and the blue arrows show scars overlapping the preferential removal. a, b , c and d correspond to the specimens CK2919, CK8091, CK4916 and CK4597 respectively (see Table S1 for raw data).
Figure S2: Victoria West cores with small removals (a, b, c) and non-ideal blow direction (d). The yellow arrows show the preparation of the two surfaces, and the red arrows show the preferential flake removal directions. a, b , c and d correspond to the specimens CK3708, CK8702, CK5837 and CK3936 respectively (see Table S1 for raw data).
Figure S3: Victoria West cores from the top of the layer containing the Victoria West core assemblage. The yellow arrows show the preparation of the two surfaces, the red arrows show the preferential flake removal directions, and the blue arrows show scars overlapping the preferential removal. a, b , c and d correspond to the specimens CK3142, CK3004, CK2225 and CK2208 respectively (see Table S1 for raw data).
Table S1.Raw data for the Victoria West cores excavated from the Canteen Kopje site.