Jaw bone fossil discovered in Ethiopia is oldest known human lineage remains

de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception

A lower jaw bone and five teeth discovered on a hillside in Ethiopia are the oldest remains ever found that belong to the genus Homo, the lineage that ultimately led to modern humans.

Fossil hunters spotted the jaw poking out of a rocky slope in the dry and dusty Afar region of the country about 250 miles from Addis Ababa.

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