Add to ORKGThe Isturitz cave site is a major site for the understanding of the franco-cantabrian Magdalenian, but it was excavated relatively early (first third of the 20th century). Thus, the validity of the stratigraphic divisions made by the original excavators — and still used today for the study of their collections — are not beyond question. This paper presents a critical review of the available stratigraphic and historiographic information on the Magdalenian sequence from the cave's Grande Salle (Great Hall). We intend to show that the Isturitz Magdalenian series, kept at the Musée des Antiquités Nationales, can still deliver important clues to understand the chronology of the Magdalenian — especially the transition from middle to upper Magdale...