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stone crushing ball million auml

stone crushing ball million auml

Shaped stone balls were used for bone marrow extraction at apr , the presence of shaped stone balls at early paleolithic sites has attracted scholarly attention since the pioneering work of the leakeys in olduvai, tanzania despite the persistent presence of these items in the archaeological record over a period of two million years, their function is still debated we present new results from middle pleistocene qesem cave on the use of these .

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