Les Ostracodes plio-pléistocènes des séries sédimentaires de la bordure orientale du Cap Bon (coupe de l'Oued Lebna, Tunisie orientale)

This paper presents for the first time a detailed study of ostracods in the Upper Pliocene-Lower Pleistocene deposits of Wadi Lebna (Cape Bon eastern edge, northeastern Tunisia). The quantitative and qualitative analyses document the evolution of this area from a marine environment dominated by relatively deep or circalittoral species at the base of the succession, passing progressively up into shallower environments, and at the top infralittoral coastal environments. Particularly important from the ecological point of view is the presence in some samples of Bythocythere turgida. This species indicates deposition of these sediments during the cold phases of the Early Pleistocene.