Named after Wilmington Island on the northern Georgia Coast by Joseph Caldwell.
Cord marking on clay-tempered pottery. Cord impressions are heavy and are usually arranged vertically to the rim. The interiors of the vessels are smoothed and usually show fine striations. Vessels are usually cylindrical, with no shoulder tapering down to a round-to-conoidal base. Rims are usually straight to everted, and rarely incurve. Lips are rounded and are sometimes squared or stamped-beveled. Large lumps of partially-extruded temper often can be seen on the interior of the sherds.