What fossil evidence was recovered in 1997 in Ethiopia and used to argue the veracity of the recent African origins hypothesis?

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In 1997, fossil evidence of a previously unknown hominid species was recovered in Ethiopia, which was named Homo sapiens idaltu. This species was found to have lived approximately 160,000 years ago and possessed anatomical features that were similar to modern humans. This discovery supported the recent African origins hypothesis, which suggests that all modern humans descended from a common ancestor in Africa.

What Fossil Evidence Was Recovered in 1997 in Ethiopia and Used