Introduction -- Taphonomy of molluscan assemblages -- Shell microstructure -- Paleoecology of molluscan assemblages -- Biogeographic distribution of taxa -- Morphometry -- Stable isotopes -- Sclerochronology -- Concluding Remarks. In view of the wide range of disciplines involved in Quaternary research, this book offers a one-stop resource for the Quaternary research community, since it reviews the latest techniques and provides an approach to how mollusk shell remains are used in the reconstruction of marine environments in southern South America. Written by specialists in the field, this monograph sets the scene for multidisciplinary research involving taphonomy, paleoecology, paleobiography, morphometry, shell mineralogy analysis and sclerochronology performed on mollusk assemblages and/or selected taxa, and offers a consistent picture of spatial and temporal environmental and climatic changes.