Table of Contents
Research article
Jose A. Naranjo
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3-12
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Alfredo R. Garcia, Myrl E. Beck, Russel F. Burmester, Francisco E. Munizaga, Francisco E. Herve
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13-30
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Milka Alexandra Skewes, Francisco Camus
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31-40
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Christopher Halls, Albrecht Schneider
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41-56
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Alvaro Puig, Sergio Diaz, Lucia Cuitino
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57-82
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Petrological note
Beatriz Levi, Jan Olov Nystrom, Humberto Padilla, Mario Vergara
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83-88
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Paleontological Note
Patricia Salinas
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89-94
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