As described by Willey 1949:445:
Definition as a type: Defined by Goggin (1940, 1944a); Willey (n.d.) has breif descriptions. Is identical with type St. Johns Check Stamped described by Masius (n.d.).
Ware characteristics: A soft, chalky pottery. Core is dark gray or black and the surfaces buff. Fire mottling is common. Surfaces may be rough or smooth. Hardness 2.5 or less.
Decoration: Check-stamp or grid-bar unit impressed on soft clay of vessel exterior. The size of the rectangles of the checking and the width of the lands forming the rectangles varies from 5 mm. to 1 cm. Both oblong, and square checks occur. Impressions are usually deep and clear but sometimes blurred by overlapping. Covers most of vessel extrior. Sometimes a band below the rim is left plain. (Pl. 40, g; pl. 50, c.)
Form: Large, deep, open bowls or pots, with straight or slightly outslanting walls, flattened-globular bowls, and simple jars. Rims usually unmodified, although an occasional exterior fold is seen (fig. 55). Occasional triangular rim projections.
Geographical distribution of type: Principal distribution is east Floridian but occurs in abundance along Gulf Coast as well. Virtually absent in northwest Gulf region, however.
Chronological position of type: Throughout Florida it first appears on the Weeden Island horizon. Along the Gulf Coast it continues on into Englewood and Safety Harbor Periods.
Relationships of type: Undoubtedly has early prototypes, probably of the Deptford level. Bears closest resemblance to contemporary Wakulla Check Stamped type.
Bibliography: Goggin (1940, 1944a); Wiley (n.d.); Massuis (n.d.)