Rosenberger, A. L., Hartwig, W. C., Takai, M., Setoguchi, T., and Shigehara, N. 1991. "
Dental Variability in Saimiri and the Taxonomic Status of Neosaimiri fieldsi, an Early Squirrel Monkey from La Venta, Colombia."
International Journal of Primatology. 12 (3):291–301.