Homo ergaster ( meaning `` working man '' ) or African Homo erectus is an extinct chronospecies of Homo that lived in eastern and southern Africa during the early Pleistocene , between 1.8 million and 1.3 million years ago .
Homo ergaster , also called `` African Homo erectus '' , is an extinct chronospecies of Homo which lived in eastern and southern Africa during the early Pleistocene , between 1.8 million and 1.3 million years ago .