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Thursday, October 22, 2009

Kenyan tool discovery could push Homo age back to two million years

Just a quick mention of these interesting findings. The tools found by Thomas Plummer's team in Kenya are the oldest Olduwayan style tools found in what used to be a savannah habitat (there are older ones but belong to jungle ecosystem). For this reason the researchers are quite confident that they do belong to members of the genus Homo. The oldest dates considered at the moment were of some 1.8 million years.

Thomas W. Plummer et al., Oldest Evidence of Toolmaking Hominins in a Grassland-Dominated Ecosystem. PLoS ONE, 2009 (free access like all PLoS materials).


terryt said...

I already thought the Oldowan was about 2 miilion years, so this information is not too surprising.

Maju said...

Oldowan in jungle yes, it seems. This is savannah Oldowan, and hence suspected to be made by Homo spp.

terryt said...

I don't think the older tools were found in 'jungle' habitats, just in more heavily wooded ones than were the present examples. In other words not 'in a Grassland-Dominated Ecosystem'.

Maju said...

Jungle or at least densely forested areas. That's what they say.