Deborah Olszewski Department of Anthropology University Museum 33rd and Spruce Streets University of Pennsylvania Philadelphia, PA 19104 deboraho@sas.upenn.edu		Harold L. Dibble Department of Anthropology University of Pennsylvania Philadelphia, PA hdibble@sas.upenn.edu		Shannon P. McPherron Department of Human Evolution Max Planck Institute for Evolutionary Anthropology DeutscherPlatz 6 Leipzig, Germany 04105 mcpherron@eva.mpg.de www.oldstoneage.com/shannon