Cuarón, Alfredo D.; Martinez-Morales, Miguel Angel; McFadden, Katherine W.; Valenzuela, David; & Gompper, Matthew E. (2004). "The status of dwarf carnivores on Cozumel Island, Mexico". Biodiversity and Conservation. 13 (2): 317–331. doi:10.1023/B:BIOC.0000006501.80472.cc.CS1 maint: multiple names: authors list (link)
Gompper, M. E.; Petrites, A. E. & Lyman, R. L. (2006). "Cozumel Island fox (Urocyon sp.) dwarfism and possible divergence history based on subfossil bones". Journal of Zoology. 270 (1): 72–77. doi:10.1111/j.1469-7998.2006.00119.x.CS1 maint: multiple names: authors list (link)