Brazil has the largest mammal diversity in the world, with more than 600 described species and more likely to be discovered. According to the International Union for Conservation of Nature, 66 of these species are endangered, and 40% of the threatened taxa belong to the primate group.
Some species were assessed using an earlier set of criteria. Species assessed using this system have the following instead of least concern categories:
^Solari, S. (15 January 2018). "Vampyrum spectrum (Spectral Bat)". IUCN Red List of Threatened Species. 2018: e.T22843A22059426. doi:10.2305/IUCN.UK.2018-2.RLTS.T22843A22059426.en. Retrieved 16 April 2024.|date= / |doi= mismatch
^Lucherini, M.; Eizirik, E.; de Oliveira, T.; Pereira, J. & Williams, R.S.R. (22 April 2014). "Leopardus colocolo (Pampas Cat)". IUCN Red List of Threatened Species. 2016: e.T15309A97204446. doi:10.2305/IUCN.UK.2016-1.RLTS.T15309A97204446.en. Retrieved 16 April 2024.|date= / |doi= mismatch
^Pereira, J.; Lucherini, M. & Trigo, T. (20 April 2014). "Leopardus geoffroyi (Geoffroy's Cat)". IUCN Red List of Threatened Species. 2015: e.T15310A50657011. doi:10.2305/IUCN.UK.2015-2.RLTS.T15310A50657011.en. Retrieved 16 April 2024.|date= / |doi= mismatch
^Paviolo, A.; Crawshaw, P.; Caso, A.; de Oliveira, T.; Lopez-Gonzalez, C.A.; Kelly, M.; De Angelo, C. & Payan, E. (10 May 2014). "Leopardus pardalis (Ocelot)". IUCN Red List of Threatened Species. 2015: e.T11509A97212355. Retrieved 16 April 2014.|volume= / |date= mismatch
^Payan, E. & de Oliveira, T. (25 May 2016). "Leopardus tigrinus (Northern Tiger Cat)". IUCN Red List of Threatened Species. 2016: e.T54012637A50653881. doi:10.2305/IUCN.UK.2016-2.RLTS.T54012637A50653881.en. Retrieved 16 April 2024.|date= / |doi= mismatch
^de Oliveira, T.; Paviolo, A.; Schipper, J.; Bianchi, R.; Payan, E. & Carvajal, S.V. (10 May 2014). "Leopardus wiedii (Margay)". IUCN Red List of Threatened Species. 2015: e.T11511A50654216. doi:10.2305/IUCN.UK.2015-4.RLTS.T11511A50654216.en. Retrieved 16 April 2024.|date= / |doi= mismatch
^Caso, A.; de Oliveira, T. & Carvajal, S.V. (9 May 2014). "Herpailurus yagouaroundi (Jaguarundi)". IUCN Red List of Threatened Species. 2015: e.T9948A50653167. doi:10.2305/IUCN.UK.2015-2.RLTS.T9948A50653167.en. Retrieved 16 April 2024.|date= / |doi= mismatch
^Nielsen, C.; Thompson, D.; Kelly, M. & Lopez-Gonzalez, C. A. (17 April 2014). "Puma concolor (Puma)". IUCN Red List of Threatened Species. 2015: e.T18868A97216466. Retrieved 16 April 2024.|volume= / |date= mismatch
^Quigley, H.; Foster, R.; Petracca, L.; Payan, E.; Salom, R. & Harmsen, B. (5 August 2016). "Panthera onca (Jaguar)". IUCN Red List of Threatened Species. 2017: e.T15953A123791436. Retrieved 16 April 2024.|volume= / |date= mismatch
^Cypriano-Souza, Ana Lúcia; De Meirelles, Ana Carolina Oliveira; Carvalho, Vitor Luz; Bonatto, Sandro Luis (2017). "Rare or cryptic? The first report of an Omura's whale (Balaenoptera omurai) in the South Atlantic Ocean". Marine Mammal Science. 33 (1): 80–95. Bibcode:2017MMamS..33...80C. doi:10.1111/mms.12348.
^Taylor, B.L.; Baird, R.; Barlow, J.; Dawson, S.M.; Ford, J.; Mead, J.G.; Notarbartolo di Sciara, G.; Wade, P. & Pitman, R.L. (30 June 2008). "Physeter macrocephalus (Sperm Whale)". IUCN Red List of Threatened Species. 2019: e.T41755A160983555. doi:10.2305/IUCN.UK.2008.RLTS.T41755A160983555.en. Retrieved 16 April 2024.|date= / |doi= mismatch
^Reid, F. (1 March 2016). "Hydrochoerus hydrochaeris (Capybara)". IUCN Red List of Threatened Species. 2016: e.T10300A22190005. doi:10.2305/IUCN.UK.2016-2.RLTS.T10300A22190005.en. Retrieved 16 April 2024.|date= / |doi= mismatch
Costa, L.P. et al. 2005. Mammal Conservation in Brazil. Conservation Biology19 (3), pp. 672–679.
Moratelli, R., Dias, D. 2015. A new species of nectar-feeding bat, genus Lonchophylla, from the Caatinga of Brazil (Chiroptera, Phyllostomidae). ZooKeys 514, pp. 73–91.
Nogueira, M.R. et al. 2014. Checklist of Brazilian bats, with comments on original records. Check List10 (4), pp. 808–821.
Rocha, P.A. et al. 2015. First record of Salvin's big-eyed bat Chiroderma salvini Dobson, 1878 for Brazil. Mammalia (in press).
_crop.jpg/1280px-Choloepus_hoffmanni_(Puerto_Viejo,_CR)_crop.jpg)
_-_Cartwright_Cave_-_March_2006_-_2.jpg/1280px-Tadarida_brasiliensis_-_Bahamas_-_Long_Island_(sic)_-_Cartwright_Cave_-_March_2006_-_2.jpg)
