Sub-Stratum 8C: “Plainview 1”
Separated from the underlying Sub-Stratum 8B by up to 12 inches of red sand, Sub-Stratum 8C is roughly 4 inches thick. A large portion of the deposit, however, was either washed out by floodwaters or destroyed by later, Archaic-period occupants who dug a pit into this stratum from a higher level in the shelter.
Sub-Stratum 8C comprises two layers of red clay, each about 2 inches thick. These are separated by 2 inches of red sand containing a quantity of small angular limestone roof spalls that give it a slightly gravelly appearance. From this level came one lanceolate point (originally classified as Plainview), broken into three fragments, with a small wedge-shaped piece missing. The second point resembles variants of the Dalton type point.
Other tools include bifaces, scrapers, bifacial perforators, gravers, utilized flakes, a bifacial gouge or adze, and a hammerstone of Potter chert. One of the perforators (see photo, right) was recycled from what appears to be a Dalton-like projectile point, judging from its base. The elongated tip is cylindrical The narrow bifacial tool is made of coarse quartzite and resembles both the Clear Fork and Dalton adze varieties. A comparison of Clear Fork tools from the Wilson-Leonard site and Dalton adzes from the Sloan site in Arkansas show striking similarity in metric attributes. Use-wear analysis on Clear Fork tools suggests they were used for diverse tasks, including wood-working and scraping.
A variety of animal bone, including that of birds, small mammals, snake, frog, and turtle, was recovered. Fragments of eggshell, found cemented in the matrix, had curvature and thickness similar to a chicken egg.
Above Sub-Stratum 8C is a deposit of red river sand about 6 inches thick.