(en) Jessica W. Lynch Alfaroet al., « Explosive Pleistocene range expansion leads to widespread Amazonian sympatry between robust and gracile capuchin monkeys », Journal of Biogeography, vol. 39, no 2, , p. 272–288 (DOI10.1111/j.1365-2699.2011.02609.x)
(en) Jessica W. Lynch Alfaro, José de Sousa e Silva Jr. et Anthony B. Rylands, « How Different Are Robust and Gracile Capuchin Monkeys? An Argument for the Use of Sapajus and Cebus », American Journal of Primatology, vol. 74, no 4, , p. 1–14 (PMID22328205, DOI10.1002/ajp.22007)
(en) Jessica W. Lynch Alfaro, José de Sousa e Silva Jr. et Anthony B. Rylands, « How Different Are Robust and Gracile Capuchin Monkeys? An Argument for the Use of Sapajus and Cebus », American Journal of Primatology, vol. 74, no 4, , p. 1–14 (PMID22328205, DOI10.1002/ajp.22007)