Palinspastic restorations of the Mauléon hyperextended rift basin showing the main depositional systems, active faults and sedimentary fluxes from the Albian to the Late Cenomanian. (A) Early to Late Albian; (B) latest Albian to Early Cenomanian; (C) Middle to Late Cenomanian. Bu: Bustince Formation; MC: Mendibelza Formation; La: Lanne Member; SMD: South Mauléon Detachment; NMD: North Mauléon Detachment; Er: Errozaté Formation; St-B: Saint-Étienne-de-Baïgorry Formation; Bo: Bonloc Formation; Hi: Hiruraitzeta Formation; Ez: Erretzu Member; Ur: Urdach Member; Iy: Iholdy diapir; Ro: Roquiague diapir.