Résumé
We present novel 3D subsidence data enabling vertical movements' quantification during the early formation of the Pyrenean retro-wedge. From Cenomanian to Turonian times, subsidence is relatively low (~26 ± 10 m/Myr), corresponding to a brief 10 Myr thermal re-equilibration of the European lithosphere following the hyperextended rift episode. The Coniacian-Santonian period marks a major subsidence reorganisation, with uplift or subsidence cessation on the former Early Cretaceous margin and a sudden acceleration in the necking domain (~300 ± 10 m/Myr). We interpret this episode as lithospheric buckling related to far-field deformation leading to superimposed flexural and thermal subsidence due to incomplete thermal re-equilibration. During Campanian-Maastrichtian time, subsidence decreases in the necking domain (~26 ± 10 m/Myr) and resumes on the margin (~26 ± 10 m/Myr), reflecting a homogenization of subsidence drivers across the Aquitaine Basin. This marks the progressive shift from post-rift thermal subsidence to flexural retro-foreland basin subsidence.