^Thorington, R. W. and R. S. Hoffmann. 2005. Family Sciuridae. pp 754–818 in Wilson, E. D. and Reeder, D. M. (eds.), Mammal Species of the World A Taxonomic and Geographic Reference, Vol. 2. Johns Hopkins University Press, Baltimore.
^Richard W. Thorington, Jr. (2012). Squirrels of the World. Johns Hopkins University Press. pp. 1-3