Researchers have unveiled world’s oldest tiny primate, dating back 55 million years, dubbed Archicebus achilles, providing new clues about the origins of the ancestors of humans. An artist rendering of an Archicebus achilles. Image © XIJUN NI/AP
Archicebus achilles recovered from sedimentary rock deposited in an ancient lake roughly 55 million years ago, is the oldest primate fossil, beating the earlier record-holders by 7 million years.
It belongs on a branch of the primate evolutionary tree that evolved into small mammals tarsiers, small enough to fit in the palm of your hand, that live in Asia.