1. The opening of Drake Passage;Barker;Mar. Geol.,1977
2. The influence upon Southern Ocean circulation, sedimentation, and climate of the opening of Drake Passage;Barker,1982
3. Evidence for Late Eocene to Early Oligocene Antarctic glaciation and observations on late Neogene glacial history of Antarctica: results from Leg 119;Barron,1991
4. Sobre el ‘Piso Patagoniano’ y la representación de la época del Oligoceno en Patagonia austral República Argentina;Bertels;Rev. Asoc. Geol. Argent.,1970
5. Arrival of Semicassis pyrum (Lamarck) and other tonnacean gastropods in the Southern Ocean during Pleistocene time;Beu;J. R. Soc. N. Z.,1976