Human heads engraved on ceramic sherds from refuse pit north of Mound 34, Cahokia.

Brown, J.A. 1989. On Style Divisions of the Southeastern Ceremonial Complex: A Revisionist Approach. In The Southeastern Ceremonial Complex: Artifacts and Analysis, edited by P. Galloway, p. 183-204. University of Nebraska Press, Lincoln. modified after Fig. 5a, p. 194 (photo by Marvin Jetter, Thomas Gilcrease Institute of American History and Art, Tulsa, OK)

Image courtesy of Thomas Gilcrease Institute of American History and Art (photo by M. Jetter).