Land connections across South Atlantic

p. 83-258, [2] p. of plates : ill., maps. ; 27 cm.Includes bibliographical references.The Atlantic Ocean Basin / Maurice Ewing -- Continental drift versus land bridges / Walter H. Bucher -- Stratigraphic and paleontologic data relevant to the problem of Afro-American ligation during the Paleozoic and Mesozoic / Kenneth E. Caster. Discussion / Carl O. Dunbar -- Stratigraphic evidence bearing on the hypothesis of continental drift / Marshall Kay -- Probabilities of dispersal in geologic time / George Gaylord Simpson -- Variables affecting the probabilities of dispersal in geologic time / Daniel I. Axelrod -- Fossil floras of the Southern Hemisphere and their phytogeographical significance / Theodor Just -- Phytophyletic patterns on lands bordering the South Atlantic Basin / Wendell H. Camp -- Living invertebrates and Mesozoic South America / P.J. Darlington, Jr. -- The biogeography of termites / Alfred E. Emerson -- The evidence of the fresh-water fishes / Bobb Schaeffer. Discussion / David H. Dunkle -- The Mesozoic tetrapods of South America / Edwin H. Colbert. Discussion / Alfred S. Romer