A Middle Neolithic culture found over most of France, named for the Camp de Chassey, which appeared c 4300 BC. By this time, Chassey pottery had superseded impressed ware in the south and the new style is found in caves, village sites, cists, pit graves, and megalithic chamber tombs. The earliest Chassey pottery is often decorated with scratched geometric patterns, whereas the later wares are more plain and have pan-pipe (flûte de pan) lugs. In north and central France, the culture appeared c 3800. In many areas the Chassey people were the first Neolithic farmers. The pottery and flintwork of the Paris basin differ in many ways from those of the Midi. One distinctive form of vessel, the vase support with scratched decoration, is confined to the Paris basin and western France. Both cave and open settlements were occupied.