a) Cumulative probability plots of the combined Saint Antonin zircon U-Pb data plotted against the combined zircon U-Pb data of the Clumanc and St. Lions conglomerates of the Barrême basin (Jourdan et al., 2013). A P(KS) = 0% value shows that the two distributions are significantly different. b) Cumulative probability plots of the combined Saint Antonin ZFT data plotted against the combined ZFT data of the Clumanc and St. Lions conglomerates of the Barrême basin (Bernet et al., 2009; Jourdan et al., 2013). A P(KS) = 0% value shows that the two distributions are significantly different, as is also the case with the zircon U-Pb ages. c) Cumulative probability plots of the combined Saint Antonin ZFT data plotted against the Grès de Ville ZFT data of the Barrême basin (Jourdan et al., 2013). A P(KS) = 31.1% value indicates that the two distributions are very similar and differences are probably only due to random chance variations.