|
|
|
|
|
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...
ver más
|
|
|
|
|
|
|
|
|
|
|
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...
ver más
|
|
|
|
|
|
|
|
|
|
|
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...
ver más
|
|
|
|
|
|
|
|
|
|
|
Gustavo G. Voldman,Juan L. Alonso,Luis P. Fernández,Gladys Ortega,Guillermo L. Albanesi,Aldo L. Banchig,Raúl Cardó
Pág. 399 - 409
The Rinconada Formation is a mélange that crops out in the eastern margin of the Argentine Precordillera, an exotic terrane accreted to Gondwana in Ordovician times. Its gravity-driven deposits have been studied by means of conodont and graptolite biostr...
ver más
|
|
|
|
|
|
|
|
|
|
|
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 ...
ver más
|
|
|
|
|
|