Robert Gastaldo, Whipple-Coddington Professor of Geology, is a keynote speaker at the 23rd Congresso Barsiliero de Paleontologia Oct. 13-18 in Gramados, Rio Grande Sul, Brazil. He will lecture on his work in South Africa.

During the late Paleozoic (Permian) era, the Karoo Basin in South Africa and the Parana Basin in Brazil were connected as the result of plate tectonics and the assembly of Pangea. Gastaldo's research in South Africa has a bearing on the research being done in the same-aged rocks on, what is now, the other side of the Atlantic. The congress provides opportunities to consult with Brazilian paleobotanists and geologists and their students who have interests in the same problems, Gastaldo reported.