Introduction. Germán Mariano Gasparini, Jorge Rabassa, Cecilia Deschamps & Eduardo Pedro Tonni. -- The Heinrich and Dansgaard–Oeschger Climatic Events During Marine Isotopic Stage 3. Jorge Rabassa & Juan Federico Ponce. -- On the Origin of the Dansgaard–Oeschger Events and Its Time Variability. Silvia Duhau & Cornelis de Jager. -- The Influence of the Geomagnetic Field in Climate Changes. María Julia Orgeira, Ana María Sinito & Rosa Hilda Compagnucci. -- Abrupt Climate Changes During the Marine Isotope Stage 3 (MIS 3). Eduardo Andrés Agosta & Rosa Hilda Compagnucci. -- Active Deformation, Uplift and Subsidence in Southern South America Throughout the Quaternary: A General Review About Their Development and Mechanisms. Andrés Folguera, Guido Gianni, Lucía Sagripanti, Emilio Rojas Vera, Bruno Colavitto, Darío Orts & Víctor Alberto Ramos. -- The Marine Isotopic Stage 3 (MIS 3) in Valleys of the Undulated Pampa, Buenos Aires Province, Argentina. Adriana María Blasi, Carola Castiñeira Latorre, Gabriela Catalina Cusminsky & Ana Paula Carignano. -- Sea Level Changes During Marine Isotopic Stage 3 (MIS 3) in Argentina. Federico Ignacio Isla & Enrique Jorge Schnack. -- Paleogeographic Evolution of the Atlantic Coast of South America During Marine Isotope Stage 3 (MIS 3). Juan Federico Ponce & Jorge Rabassa. -- The Continental Record of Marine Isotope Stage 3 (MIS 3; ~60–25 ka) in Central Argentina: Evidence from Fluvial and Aeolian Sequences. Marcelo Zárate, Adriana Mehl & Alfonsina Tripaldi. -- Marine Isotope Stage 3 (MIS 3) and Continental Beds from Northern Uruguay (Sopas Formation): Paleontology, Chronology, and Climate. Martín Ubilla, Andrea Corona, Andrés Rinderknecht, Daniel Perea & Mariano Verde. -- The Brazilian Intertropical Fauna from 60 to About 10 ka B.P.: Taxonomy, Dating, Diet, and Paleoenvironments Mário André Trinidade Dantas & Mario Alberto Cozzuol. -- Continental Vertebrates During the Marine Isotope Stage 3 (MIS 3) in Argentina. Germán Mariano Gasparini, Esteban Soibelzon, Cecilia Deschamps, Analía Francia, Elisa Beilinson, Leopoldo Héctor Soibelzon & Eduardo Pedro Tonni. -- Marine Isotope Stage 3 (MIS 3) Versus Marine Isotope Stage 5 (MIS 5) Fossiliferous Marine Deposits from Uruguay. Alejandra Rojas & Sergio Martínez. -- Vegetation and Climate in Southern South America during Marine Isotope Stage 3 (MIS 3): an Overview of Existing Terrestrial Pollen Records. Ana María Borromei & Lorena Laura Musotto. -- Response of Diatoms to Late Quaternary Climate Changes. Marcela Alcira Espinosa. -- Silicophytolith Studies in South America and Argentina: Scope and Limitations for Paleoenvironmental Reconstruction of the Marine Isotope Stage 3 (MIS3). Margarita Osterrieth, María Fernanda Alvarez, Mariana Fernández Honaine & Georgina Erra.