Reconstructed cross-sections at selected periods. See cross-sections location on Figure 1. The structure of the Pyrenees is adapted from Chevrot et al. (2018). (A) Section across the Provence fold-and-thrust belt, the Liguro-Provençal basin, Corsica, the Tyrrhenian Sea and the Tuscan Archipelago and, finally the Apennines. (B) Section across the Gulf of Lion passive margin, the Liguro-Provençal Basin, Sardinia, The Southern Tyrrhenian Sea, Calabria and the Calabrian subduction zone. 6c: section across the Pyrenees, the Catalan Range, the Valencia Trough, the Balearic Islands, the Algerian Basin, the north African margin of Algeria and the Tell. 6d: section across the Gulf of cadiz accretionary wedge, the Gibraltar Arc, the Alboran Sea. Shorter sections show a parallel E-W onland line across the Betic Cordillera.