Late Pliocene
The Late Pliocene spans the period from 3.6 to 2.6 million years ago. Stone tools first appear in the archaeological record during this period, about 3.3 million years ago.
The Late Pliocene spans the period from 3.6 to 2.6 million years ago. Stone tools first appear in the archaeological record during this period, about 3.3 million years ago.