“…In spite of these major deformations, which caused a structural complexity in the area, certain authors [11,17,20,29] consider that the Tertiary series are concordant and rest conformably on the Mesozoic series. This interpretation, although refuted by detailed cartographic mapping [16,18,21,23,24] and petroleum studies using seismic reflexion [13,14] was recently re-evoked [1,12,25]. The main purpose of this present note is to analyze the Eo-Oligo-Miocene siliciclastic series of northern Tunisia (Zahret Médiane and Jebel Zouza areas) following a pluridisciplinary approach including biostratigraphy, sedimentology and structural geology.…”