Edward R. Henry

The organization of dissonance in Adena-Hopewell societies of eastern North America

Abstract Social complexity increased dramatically during the Middle Woodland period (c. 200 bc–ad 500) in eastern North America. Adena-Hopewell societies during this period built massive burial mounds, constructed complex geometric earthen enclosures and maintained extensive trade networks in exotic craft goods. These material signatures suggest that coalition and consensus were sustained through social bonds since clear evidence for top-down leadership does not exist in Adena-Hopewell archaeology. Here, a framework grounded in new understandings of heterarchy is used to explore how coalitions were formed, organized, maintained and/or shifted as a means to coordinate labour and ritual among Middle Woodland Period groups. Through re-analysis of the Wright Mound in Kentucky, and its burial contents, new insights into heterarchical organization are used to achieve a wider, diachronic understanding of how humans in the past reached, realized and rearranged forms of consensus and coalition.

NEW PERSPECTIVES ON MISSISSIPPIAN OCCUPATIONS IN WESTERN TENNESSEE AND NORTHWESTERN MISSISSIPPI: RECENT CHRONOLOGICAL AND GEOPHYSICAL INVESTIGATIONS AT CHUCALISSA (40SY1), SHELBY COUNTY, TENNESSEE

Abstract Investigations at Chucalissa (40SY1) in Shelby County, Tennessee, have been instrumental in establishing Mississippian period chronology for southwestern Tennessee and much of the surrounding region. Excavations conducted in 2003 produced a suite of new radiocarbon dates that has provided a refined developmental lineage of occupations in West Tennessee and northwestern Mississippi, while geophysical investigations in 2011 have clarified our understanding of the late prehistoric occupation of the site and validated suggestions of distinctive mound architecture in a region extending over a large portion of the Southeast.

Tetrahedron Baked-Clay Objects from an Early Woodland Context at the Jaketown Site, Mississippi

ABSTRACT Excavations undertaken in 1951 at the Jaketown site revealed a dense deposit of fragmented and intact pyramid-shaped baked-clay objects (BCOs) at the base of Mound A. This deposit was associated with the site’s Early Woodland component. Recent fieldwork at Jaketown also encountered the same tetrahedron deposit and identified an additional and distinct pit feature filled with the objects. In this article, we present the results of analyses that examine the production, composition, chronology, and function of these enigmatic baked-clay artifacts. Following a hiatus associated with massive flooding in the Mississippi Valley ca. 3200–2850 cal B.P., Jaketown was re-occupied by people who shared ceramic affinities with groups to the south and to the east and, who like many contemporaries, used BCOs as a part of their cooking technology. The tetrahedron deposit represents one of the earliest dated Tchula contexts at ca. 2600 cal B.P., and was used over a short time for a social purpose that brought populations together for food consumption as a means of encouraging cooperation.

Rapid climate change-induced collapse of hunter-gatherer societies in the lower Mississippi River valley between ca. 3300 and 2780 cal yr BP

Hunter-gatherer communities in the American Southeast reached an apogee of social and political complexity in the period between ca. 4200 and 3000 cal yr BP. In the lower Mississippi Valley (LMV) the Poverty Point culture defined this period of socio-political elaboration. However, following a significant period of climate change that led to exceptional flooding and a major reorganization of the course of the Mississippi River, this culture collapsed beginning ca. 3300–3200 cal yr BP and the LMV was abandoned for the subsequent 500 years. In this study, we use data from the Jaketown site in the Yazoo Basin of west-central Mississippi to refine the chronology of the climate event that caused the collapse of the Poverty Point culture. A large flood buried Poverty Point-era occupation deposits at Jaketown around 3310 cal yr BP. Lateral migration of the Mississippi River during flooding led to inundation of the Yazoo Basin and re-occupation of ancient river courses. A coarse sand stratum topped by a more than a meter-thick fining upward sediment package marks a crevasse deposit caused by a rupture of the natural levee at Jaketown. This levee breach was part of a larger pattern of erratic flooding throughout the LMV and is associated with major landscape evolution and the abandonment of Poverty Point sites within the valley. Early Woodland peoples re-colonized the crevasse surface after ca. 2780 cal yr BP. Following this event, the Jaketown site and the eastern Yazoo Basin witnessed a period of landscape stability that lasts to this day. These archaeological data demonstrate how climate change and natural disasters can lead to socio-political dissolution and reorganization even in relatively small-scale hunter-gatherer populations.