The Maya Polychrome Tradition existed from late/end of Acbi and into and through late Coner. It consists of one group, Caterpillar, which is broadly found throughout the Maya region. Typical forms belonging to this traditions are basal-flange bowls, shallow ring-based bowls, and tripod dishes with supports. The walls are usually thinner with a slightly thickened rim. Polychrome or bichrome paint was used, and, depending on the shape, either the interior (when walls are more flared) or the external sides (usually concave walls) were painted.