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The Kombewa technique creates a standardized ovate planform comprising a protracted edge and a biconvex section and predetermines blank morphology . Whereas the Kombewa technique has long been thought-about a late Early Pleistocene to Middle Pleistocene technology , its incidence at ∼1.4 Mya attests to a much earlier attainment. The stone handaxes of this time period typically exhibit planform symmetry and a thinner tip that required fine flaking (Fig. 6).
A considerable 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, upper row). In addition to the centripetal core preparation technology, Kombewa flakes, defined as flakes detached from the ventral face of a large flake core , are also seen on the identical Konso sites (Fig. 5, decrease row). While most of the giant flakes at Konso with two ventral faces exhibit only one striking platform, this may be attributed to the removal of the striking platform by secondary flaking.
Our systematic use-put on analysis furthermore indicates that the Konso bone handaxe was most likely used, probably …