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Examples of projectile point types from Mound 72, Cahokia.
Fowler, M.L., J. Rose, B. Vander Leest, and S.R. Ahler in press. The Mound 72 Area: Dedicated and Sacred Space in Early Cahokia. Illinois State Museum Reports of Investigation, No. 54. Illinois State Museum, Springfield, IL. Fig. 56
Image courtesy of Illinois State Museum.