Orihuela, Johanset; Suarez, William; Balseiro, Diego (2020). "Late Holocene land vertebrate fauna from Cueva de los Nesofontes: Stratigraphy, chronology and paleoecology". Historical Biology. 32 (5): 596–607. doi:10.1080/08912963.2019.1618294.
McAfee, Robert K.; Beery, Sophia M. (2019). "Intraspecific variation of Megalonychid sloths from Hispaniola and the taxonomic implications". Historical Biology. 33 (3): 371–386. doi:10.1080/08912963.2019.1618294.
Gaudin, Timothy (2004). "Phylogenetic relationships among sloths (Mammalia, Xenarthra, Tardigrada): the craniodental evidence". Zoological Journal of the Linnean Society. 140 (2): 255–305. doi:10.1111/j.1096-3642.2003.00100.x.