• Burrows AM,Smith TD. 2003. Muscles of facial expression in Otolemur, with a comparison to Lemuroidea. Anat Rec 274A: 827836.
  • Fleagle JG. 1999. Primate adaptation and evolution. 2nd ed. San Diego, CA: Academic Press.
  • Hellman H. 2007. Great feuds in science: ten disputes that shaped the world. New York: Barnes & Noble.
  • Linnaeus C. 1758. Systema naturae per regna tria naturae, secundum classes, ordines genera, species cum characteribus, differentris, synonymis, locis. Editis decimia, reformata. Stockholm: Laurentii Salvii.
  • Martin RD. 1990. Primate origins and evolution. A phylogenetic reconstruction. Princeton: Princeton University Press.
  • Organ JM,DeLeon VB,Wang Q,Smith TD. 2010. From head to tail: new models and approaches in primate functional anatomy and biomechanics. Anat Rec 293: 544548.
  • Szalay FS,Delson E. 1979. Evolutionary history of the primates. New York: Academic Press.