LM3 discovered 26 February 1974 by Jim Bowler near Lake Mungo. Skeleton found 500m east of LM1 site amid shifting sand dunes. Body sprinkled with red ochre in earliest known sophisticated artistic burial. Burial practice indicates Aboriginal cultural traditions span over 50,000 years. Previously believed Aboriginals arrived from Asia only 20,000 years ago. Lake Mungo archaeology confirms human occupation 50,000 years ago. Discovery significant to indigenous Australians for ancient cultural continuity. Thorne links LM3 to human evolution from Southeast Asia. LM3 supports multiregional settlement of Australia.