“…Siddall et al, 2003;Glaciers cover: Ehlers & Gibbard, 2004; Periglacial cold deserts: Bertran et al, 2013;Bosq et al, 2018 Taking into account these limitations, we constrain our analysis to the comparison of two adjacent regions that are thought to represent coherent territories during the Middle Gravettian: 1) the Pyrenees piedmont and plateau, based on assemblages that are regionally coherent with respect of lithic typo-technology (i.e. contexts that contain Noailles burins and in which the Raysse method is absent) and raw material circulation for the entirety of the Middle Gravettian (Foucher et al, 2008;Foucher, 2013;Simonet, 2009aSimonet, , 2017Banks et al, 2019), and 2) the area constrained to the south by the Garonne River Valley and by the most northerly sites where the "Raysse method" has been observed (Klaric, 2017). The latter territory is characterized by both the Noaillian and the Rayssian faciès, and the lack of precision, at present, concerning their chronological relationship required that we group them together, which mirrors the approach employed by Banks et al (2019).…”