Early, intensive marine resource exploitation by Middle Stone Age humans at Ysterfontein 1 rockshelter, South Africa.
- Proceedings of the National Academy of Sciences of the United States of America
|University of California, Berkeley (UC Berkeley), United States of America (USA)||0.38|
|Berkeley Geochronology Center (BGC), United States of America (USA)||0.38|
|South African Museum, South Africa||0.25|