When did the first primates appear?

Members of the genus Australopithecus lived in Africa from around four to three million years ago. If the robust Australopithecines are included (now also known as Paranthropus) then Australopithecines can be considered to have existed up to around two million years ago. - Australopithecines were any of several extinct humanlike bipedal primates with relatively small brains of the genus Australopithecus that lived from 1 to 4 million years ago.