NEO-INDIAN
During the Neo-Indian Period the population expanded and some groups became sedentary, staying in one place for several years or more. Most Meso-Indian tools continued to be used by Neo-Indians, but added to these were stone and pottery vessels, baked clay balls, and many decorative or ceremonial objects. Also, for the first time, shell and earthen mounds were regularly built.
The Neo-Indian Period lasted from 2000 B.C. to A.D. 1600 and included the following cultures: Poverty Point, Tchefuncte, Marksville, Troyville-Coles Creek, Caddo and Plaquemine-Mississippian. These groups differed from one another in when and where they lived, as well as in the objects and earthworks they made.