Résumé
The recent studies on the Pleistocene of North western France have allowed the completion and revision of the previous stratigraphical tables published in the 1980s. Regarding to these first synthesis, the new data are mainly represented by the following points: - Definition of new marine and fluvial formations for the Pliocene and the Lower Pleistocene of the Carentan Basin (Normandy); - New evidence on the Pleistocene and Holocene marine formation in Normandy; - Definition of the Pleistocene fluvial systems of the Middle Seine and of the Middle Somme valleys; - New evidence of reference records for the Eemian interglacial and the Early Weichselian in the Lys Valley fluvial Formation (Nord), and for the Flandrian of the Northern France coastal plain; - Discovery of a long reference profile for the Middle Pleistocene slope sequence of the Somme basin (Picardy); - Proposal of a new pedostratigraphical synthesis and of new reference profiles for the Last Interglacial-Glacial cycle in the loess sequences from new field data, sedimentological analysis, magnetic susceptibility measurements, and TL and IRSL dates.