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By: de Inunciaga, María Fernanda - Gutiérrez, Pedro RaulType: ArticleIn: Revista del Museo Argentino de Ciencias NaturalesVolume:Series:Issue:Date: 2011-12-01Page Range:Publication Info:Subjects: Acritarchs Argentina Biostratigraphy Cachipunco Formation Jujuy Middle-Upper Silurian Santa Barbara Range