Title of article
New graptolite, chitinozoan and acritarch records from the Pascha-Incamayo area, Cordillera Oriental, Argentina
Author/Authors
Toro، نويسنده , , Blanca A. and Susana de la Puente، نويسنده , , Graciela and Rubinstein، نويسنده , , Claudia V.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
8
From page
23
To page
30
Abstract
A new fossil assemblage bearing graptolites, chitinozoans and acritarchs is analyzed based on material collected in the 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 analysis, and the stratigraphic relationships for the studied section are considered.
Keywords
Acritarchs , Northwestern Argentina , Cordillera Oriental , Cordillera Oriental , Chitinozoans , graptolites , graptolites , Acritarches , Late Tremadocian , Chitinozoaires , Trémadocien tardif , Nord-Ouest de l’Argentine
Journal title
Comptes Rendus Palevol
Serial Year
2010
Journal title
Comptes Rendus Palevol
Record number
2282499
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