Question

The earliest Australopithecine species, anamensis, is dated to about _____ million years ago

Answer 1

4.2-3.9 million year

Step-by-step explanation:

This fits with the 4.2-3.9 million-year dates for the volcanic ash associated with the anamensis fossils. The shapes of the arm and leg bones of this species indicate that it was bipedal. Anamensis is currently the earliest known australopithecine species.