FIG. 1. Location of the studied areas in Sicily and neighbouring seas: squares indicate Recent material, circles indicate fossiliferous outcrops. 1, Gulf of Noto: PS/81 and Noto/95 cruises; 2, Gulf of Catania: Ognina and Ciclopi cruises; 3, Apollo Bank (Ustica); 4, S. Marcellino Pleistocene section; 5, Serra Maloto Pleistocene section; 6, Case Catarinicchia Pleistocene section.