George R. McGhee Jr. is Distinguished Professor of Paleobiology at Rutgers University and a member of the Konrad Lorenz Institute for Evolution and Cognition Research in Klosterneuburg, Austria. He has held research positions at the University of Tübingen, the Field Museum of Natural History, and the American Museum of Natural History.Based on two decades of research, The Late Devonian Mass Extinction reviews the many theories that have been presented to explain the global mass extinction that struck the earth over 367 million years ago, considering in particular the possibility that the extinction was triggered by multiple impacts of extraterrestrial objects.McGhee has written a science mystery about one of the major extinction events in the Phanerozoic in a well organized investigation of a mass murder . . . This book is a clear, concise treatment of a complex problem that deserves readership beyond individuals interested in extinctions or the Devonian.