Different interpretations of the Cretaceous rifting stage for the southern side (Arbailles section) of the Tardets-Mauléon Basin. A: Post-Barremian north dipping “Raft tectonics” on a Triassic sole covering a tight detachment zone above a large mantle dome (Lagabrielle et al., 2010). B: Albian-Cenomanian Southward block-tilting on the necking zone (upper basement) of the Iberian crust (Masini, 2011; Masini et al., 2014); C: Mid-Cretaceous rifting stage involving north tilting blocs of the Upper basement and Triassic to Lower Cretaceous cover (Saspiturry, 2019; Saspiturry et al., 2019); D: Mid-Albian unconformity overlapping south tilted blocks of the Upper basement and Triassic to Lower Cretaceous cover (this work).