New fossils from Ethiopia open a window on Africa’s ‘missing years’

Image by Trent L. Schindler, Nat’l Science Foundation, Arlington, VAComputer-based reconstruction of an arsinoithere, an extinct fossil mammal from Ethiopia that lived 27 million years ago.Tab Rasmussen, Ph.D., a professor of anthropology in Arts & Sciences at Washington University, and two of his graduate students, were part of an international team of researchers that discovered new fossils in the highlands of Ethiopia that are filling gaps in scientists’ understanding of the evolution of African mammals. The results are reported in the Dec. 4, 2003, issue of the journal Nature.