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By: Carrillo-Briceño, Jorge D. - González-Barba Gerardo - Landaeta, Mauricio F - Nielsen, Sven N.,Type: ArticleIn: Revista chilena de historia naturalVolume:Series:Issue:Date: 2013-06-01Page Range:Publication Info:Subjects: fossil sharks and rays Neogene Paleobiogeography Paleoecology South America