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This was achieved partly by more intensive edge flaking; the ∼1.4 to 1.25 Mya Konso handaxes bear a greater number of flake scars . The advanced lithic technology enabled the production of comparatively straight edges, though nonetheless retaining appreciable sinuosity compared with later handaxes . The better-formed and straighter edges provided functional enhancements for butchering and chopping actions, suggesting an increased demand for animal carcass processing at ∼1.4 to 1.25 Mya at Konso. In addition, a striking characteristic of the Konso ∼1.four to 1.25 Mya assemblages is the occurrence of the Kombewa methodology nearly half 1,000,000 y earlier than beforehand recognized .

Our systematic use-put on analysis furthermore indicates that the Konso bone handaxe was most likely used, presumably for butchering. The scarcity of bone handaxes might signify the problem in procuring massive bone blanks and the issue of flaking bone in contrast with stone .

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A appreciable number of Konso cleavers show dorsal flake scars that point out centripetal core preparation. With these cleavers, trimming was performed only on the lateral sides to produce a trapezoidal planform (Fig. 5, higher row). In addition to the centripetal core preparation technology, …