Cultural grouping represented by sites on the central Peruvian coast of South America and dating to 3600–2500 bc. Excavated sites appear to be temporary settlements, and have yielded abundant evidence for the use of shellfish and other marine resources. Small quantities of deer bones have been found, and also gourds, wild legumes, and fruit remains. Grass seeds and seed‐processing equipment is also common. There is some evidence for the cultivation of squash from sites of this phase, the first signs of agriculture in coastal regions.