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PreviewIssue DateTitleAuthor(s)
Alván-New_evidence_of_ammonites_Yura-Arequipa.pdf.jpg2009New evidence of ammonites and its sedimentary context within Upper part of Chokolate Formation (Yura, Arequipa)Alván De la Cruz, Aldo Alfonso; Acosta Pereira, Harmuth; Aldana Alvarez, Manuel Ismael
Alván-Sedimentary_facies_and_ammonites.pdf.jpg2009Sedimentary facies and ammonites relations between Arequipa and Tacna during Lower to Middle JurassicAlván De la Cruz, Aldo Alfonso; Acosta Pereira, Harmuth