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Tools of a kind

Stone implements linked Africans and Arabians a surprisingly long time ago

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10:41am, December 9, 2011

Culturally speaking, ancient East Africans were a stone’s throw away from southern Arabia.

Stone tools collected at several sites along a plateau in Oman, which date to roughly 106,000 years ago, match elongated cutting implements previously found at East African sites from around the same time, say archaeologist Jeffrey Rose of the University of Birmingham, England, and his colleagues. New finds also include cores — or rocks from which tools were pounded off with a hammer stone — that correspond to East African specimens, the researchers report online November 30 in PLoS ONE.

East African sites that have yielded these distinctive st

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