Middle Tertiary marsupials from central Patagonia (early Oligocene of Gran Barranca): understanding South America's Grande Coupure. The paleontology of Gran Barranca: evolution and environmental change through the Middle Cenozoic of Patagonia., Cambridge University Press, Cambridge, New York etc., 2010: i-x, 1-448. Chapter pagination: 69-105. 76 [Zoological Record Volume 147]