International audienceDuring the Tardiglacial, the significant changes in plant communities relating to climate changes were responsible for faunal recompositions perceptible throughout Europe. In this article, by comparing all the AMS radiocarbon dates obtained on reindeer bone and the faunal communities derived from bone assemblages dated between ca. 19,000 cal BP and 11,700 cal BP, we examine the disappearance of reindeer from the southwest of France. The new dating shows that the species disappeared slightly earlier in the Pyrenees, at ca. 14,000 cal BP, than in the northern Aquitaine where reindeer remained until ca. 13,800 cal BP. In the southwest of France, the natural range of reindeer began to fragment very early, from the Bølling ...