^M. O. Woodburne, R. H. Tedford, M. Archer and N. S. Pledge. 1987. Madakoala, A new genus and two species of Miocene Koala (Marsupialia: Phascolarctidae) from South Australia, and a new species of Perikoala. Possums and Opossums: Studies in Evolution 1:293-317