 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 http://ccat.sas.upenn.edu/~hdibble |
 Shannon P. McPherron Department of Anthropology George Washington University Washington, DC 20052 biface@gwu.edu www.oldstoneage.com/shannon |
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