“…Molluscs have proved valid indicators of ancient coastlines, paleoenvironmental parameters (substrate, depth, energetic conditions), and paleoclimatic changes (sea surface temperature [SST], rainfall seasonality, paleo-ENSO events) (Petersen, 1986;Rollins et al, 1987;Peacock, 1989;Aguirre, 1993aAguirre, ,b, 2001Lutaenko, 1993;Perrier et al, 1994;Ortlieb et al, 1995Ortlieb et al, , 1996aCohen and Tyson, 1995;Roy et al, 1996;Sandweiss et al, 1996;Murray-Wallace et al, 2000;Maasch et al, 2001;.…”