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Fernando Enrique Lopez,Cintia Kaufmann
Pág. 201 - 216
New data and a biostratigraphic review on Silurian graptolites of the La Chilca Formation are presented. Silurian retiolitids and monoserial graptolites are described for the first time in the lower layers of the Salto Macho Member at the Poblete Norte s...
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Fernanda Serra,Nicolás A. Feltes,Matías Mango,Miles A. Henderson,Guillermo L. Albanesi,Gladys Ortega
Pág. 125 - 143
The Ordovician System is extensively represented in the Precordillera of San Juan Province, Argentina. At the Cerro La Chilca in the Jáchal area, the limestone of the San Juan Formation is paraconformably overlain by interbedded limestone and shale of th...
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Blanca A. Toro,Susana E. Heredia,Nexxys C. Herrera Sánchez,Florencia Moreno
Pág. 144 - 161
Recent biostratigraphic studies on the western argentine Puna recorded the Middle Ordovician conodont Baltoniodus cf. B. navis (Lindström) for first time, related to key graptolite taxa of the Central Andean Basin. The analyzed material comes from the lo...
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Javier Gonzalez,Hans Niemeyer,Juan L. Benedetto,Edsel D. Brussa
Pág. 277 - 290
The Cordón de Lila is located immediately to the south of the Salar de Atacama, in northern Chile. The geology of the Cordón de Lila is characterized by extensive outcrops of Early Paleozoic volcanic and sedimentary rocks (Cordón de Lila Igneous and Sedi...
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Susana Heredia,Gustavo Gallardo
Pág. 17 - 34
RESUMEN. El Miembro Inferior de la Formacion Empozada (Ordovicico medio y Superior), expuesto en el extremo sur de la precordillera argentina, Provincia de Mendoza, consiste en 305 m de brechas, pelitas verdes, areniscas, paraconglomerados y pelitas negr...
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Alfredo Cuerda,Marta Alfaro,Jose M. Cortes,Mario Franchi,Augusto Menendez
Pág. 19 - 35
ABSTRACT. Ordovician graptolites from sierra de Cajas, eastern Andes, Jujuy, Argentina. A graptolite assemblage of early Ordovician age has been found in the northern region of Sierra de Cajas (northwestern Argentina). The fossil bearing beds consist of ...
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