A team of archaeologists working on the north-eastern shore of Lake
Victoria in Kenya have recovered 330 stone tools.
The tools are a type known as Oldowan, named for Oldupai gorge in
Tanzania where the first examples were found.
The only remains they have found with the tools are two teeth belonging
to to hominins called
Paranthropus.
Based on analysis of the sediments in which the tools were found and
other fossils they estimate they are between 2.6 and 3.3 million years old,
the oldest Oldowan tools known.
The use of stone implements had been primarily associated with the
Homo genus, from whom we are descended.
However, the only hominin remains found so far are with the tools are of
Paranthropus from whom we are
not descended.
Story here at New Scientist :-
https://www.newscientist.com/article...d-stone-tools/
Paper at Science :-
https://www.science.org/doi/10.1126/science.abo7452