Excavations undertaken since 1991 in advance of gravel extraction at Bucy-le-Long « La Fosse Tounise »(Aisne) have produced substantial traces of two Neolithic settlements, the earliest dating to the Paris Basin Late Bandkeramik and the later to the Villeneuve-Saint-Germain group. Despite the close proximity of longhouses belonging to the two successive occupations, assemblages from pits do not appear mixed. Ceramic and lithic finds, as well as carbonised seeds, from the lateral pits of two neighbouring longhouses (dating respectively to Late Bandkeramik and Villeneuve-Saint-Germain) are compared. Although some differences are underlined, the evidence points to a certain degree of continuity between the two periods.