“…In the north of the Paris basin, this withdrawal may have been a little later. The date (12,000 ± 70 BP Beta-265097, i.e 14,083e13,645 cal BP) recently obtained at la Haye aux Mureaux (Debout et al, 2011) and one of two reliable dates but with a large standard deviation from Marsangy (11,600 ± 200 OxA178; 13,900e13,060 cal BP) (Schmider, 1992), could indeed indicate the presence of reindeer herds at the start of the GI-1ca. The date from Marsangy, performed at the very beginning of the AMS method, and thus without ultrafiltration, is difficult to retain for a Magdalenian context.…”