Ferreira, J.R. et al. 2005. Contribution to the anatomic study of the dura-mater of the Bradypus torquatus (Linnaeus, 1758) e Bradypus variegatus (Schinz, 1825). Brazilian Journal of Veterinary Research and Animal Science. 42, 5 (Oct. 2005), 381–387. DOI:https://doi.org/10.11606/issn.1678-4456.bjvras.2005.26415.