A Howiesons Poort tradition of engraving ostrich eggshell containers dated to 60,000 years ago at Diepkloof Rock Shelter, South Africa
P.-J. Texier,
G. Porraz,
J. Parkington,
J.-P. Rigaud,
C. Poggenpoel,
C. Miller,
C. Tribolo,
C. Cartwright,
A. Coudenneau,
R. Klein,
T. Steele, and
C. Verna
2010
Article
Proceedings of the National Academy of Sciences
107(14):6180-6185
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