Fonte:
https://www.ufrgs.br/faunadigitalrs/mamiferos/ordem-cetartiodactyla/familia-ziphiidae/
http://simmam.acad.univali.br/site/?page_id=196
http://www.gemars.org.br/wp-content/uploads/2015/09/Lista-MM_BR_RS_GEMARS.pdf
http://www.elhogarnatural.com/cetaceos/Cetaceos.html
http://ipecpesquisas.org.br/wp-content/uploads/2012/07/GUIA_ILUSTRADO.pdf
https://stringfixer.com/pt/Berardiinae