1. Mammals from the Uluguru and Usambara Mountains, Tanganyika Territory;Allen;Proc. Boston Soc. Nat. Hist.,1927
2. A new Egyptian mammal (Arsinöitherium) from the Fayûm;Andrews;Geological Magazine,1903
3. Patterns of ecological diversity in fossil and modern mammalian faunas;Andrews;Biol. J. Linn. Soc.,1979
4. Toward a revised Paleogene geochronology;Berggren,1992
5. Anthracotheriidae;Black,1978