A 170,000-year-old hand ax made from the fossilized jaw of a stegodon has been found in China.
Researchers say they have identified the first example of a bone, not stone, hand ax crafted by ancient humans in East Asia. Makers of the curved, pear-shaped implement probably used it to dig up edible roots in a densely vegetated part of South China around 170,000 years ago, say paleontologist Guangbiao Wei of China Three Gorges Museum in Chongqing and his colleagues.
Part of a lower jaw from a stegodon, a now-extinct, elephant-like creature, provided raw material for the tool, the researchers report January 8 in Quaternary International. The jaw includes a wide, thick piece of curved bone with a grip-ready indentation on its inner surface, the scientists say.
Story: Bruce Bower, ScienceNews | Photo: G. Wei et al/Quaternary International 2015
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