Frost, Darrel R. (2020). "Brachycephalidae Günther, 1858". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 4 February 2020.
amphibiaweb.org
"Brachycephalidae". AmphibiaWeb. University of California, Berkeley. Retrieved 23 August 2016.