Stethacanthus (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Stethacanthus" in Portuguese language version.

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Zangerl, Rainer (1984). «On the microscopic anatomy and possible function of the spine-"brush" complex of Stethacanthus (Elasmobranchii: Symmoriida)». Journal of Vertebrate Paleontology. 4 (3): 372–378. doi:10.1080/02724634.1984.10012016

«A Golden Age of Sharks». Biology of Sharks and Rays. Consultado em 24 de julho de 2019

«Stethacanthus». Wikipédia, the Free Encyclopedia. Consultado em 24 de julho de 2019