Dr. Gabriela Cusminsky is known as a brilliant geologist and paleontologist. She is a regional and world authority in both marine and terrestrial forams and ostracods. Cusminsky finished her postdoc studies at the University of Wales at Aberysthwyth.

• Foreword.-Introduction.- Chapter 1 Biofaciological zonation of recent benthic foraminifera along a tropical Pacific Colombian shelf-to-slope bathymetric gradient.- Chapter 2 Modern benthic foraminifera of the Panamá Bight.- Chapter 3 Late Pleistocene paleoenvironmental and paleoclimatic changes in southern Buenos Aires province, Argentina.- Chapter 4 Turonian Danian Zonation.- Chapter 5 Turonian Santonian Zonation.- Chapter 6 Calcareous microfossils of the MIS 1 in its innermost sector, Rio Salado Basin.- Chapter 7 Danian calcareous microfossils from Ombucta x-1 well, Colorado Basin, Argentina.- Chapter 8 Late Miocene foraminifera and ostracoda, from Cajon valley, Catamarca, Argentina.- Chapter 9 A new microfaunistic record from the Late Quaternary of Salinas del Bebedero, San Luis, Argentina.- Chapter 10 Late Cretaceous – Cenozoic Biostratigraphy and Palaeoenvironmental reconstruction of the Salado and Punta del Este Basins, Argentine continental margin.- Conclusion.- References.