Literature
- Geoffroy Saint-Hilaire, E. 1812. Tableaux des quadrumanes ou des animaux composant la première ordre des mammifères, Ann. Mus. Hist. Nat. Paris 19: 156-170.
- Napier, J. R. and Napier, P. H. 1985. The natural history of the primates. British Museum (Natural History)/Cambridge University Press. London.
- Noel, R. 1996. The pictorial guide to the living primates. Pogonia Press, New York.
- Parker, S. B. 1982. Synopsis and classification of living organism. McGraw-Hill, New York.
- Simpson, G. G. 1945. The principles of classification and classification of Mammals. Bul. Amer. Mus. Nat. Hist. 85: 1-350.