IANIGLA   20881
INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
artículos
Título:
New graptolite, chitinozoan and acritarch records from the Pascha-Incamayo area, Cordillera Oriental, Argentine
Autor/es:
B. A. TORO; G. S. DE LA PUENTE ; C. V. RUBINSTEIN
Revista:
COMPTES RENDUS PALEVOL
Editorial:
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
Referencias:
Lugar: Amsterdam; Año: 2010 vol. 9 p. 23 - 23
ISSN:
1631-0683
Resumen:
Abstract. A new fossil assemblage bearing graptolites, chitinozoans and acritarchs is analyzed based on material collected in Pascha-Incamayo area, Salta Province, NW Argentina. The occurrence of Hunnegraptus copiosus (Lindholm, 1991), associated with specimens of the genus Tetragraptus (Salter, 1863) is highly relevant to improve the age assignment and correlate the fossil-bearing levels previously assigned to the Devendeus Formation. Different stages in the development of the index species of the Upper Tremadocian H.  copiosus Biozone are described and illustrated. The precise stratigraphic ranges of the associated chitinozoans and acritarchs are discussed, according to the biostratigraphic graptolite analysis, and the stratigraphic relationships for the studied section are considered.
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