This type was named by Gordon Willey from the Florida Gulf Coast. Named after the Alligator Bayou site, 8By18, in Bay County, Florida.
Elaborate zoned rocker stamping on clay-tempered pottery. Known vessel forms include flattened-globular bowls, squared flattened-globular bowls, collared globular bowls, cylindrical beakers, squared beakers, and multiple-orifice vessels. Rims are incurved with exterior folds or with marginal thickening on the direct, unmodified out-slanting rims. Lips are flat, round-flat, and round-pointed. Bases are round and flat.