PALINOLOGIA DEL SILURICO SUPERIOR (FORMACION LOS ESPEJOS) DE LOMA DE LOS PIOJOS, PRECORDILLERA DE SAN JUAN, ARGENTINA

Claudia V. Rubinstein

Abstract


The microplankton found in the middle to upper section of Los Espejos Formation (Upper Silurian) in Loma de Los Piojos, South of Jáchal is described. The distribution of species in the section and their chronological range are given. Comparisons with other assemblages of similar age from the sarue region and elsewhere are discussed and analogies with gondwanic and perigondwanic assemblages are established. A palynofacies distribution parallel to paleolatitudes proposed for the Silurian is discussed. The studied microplankton is assigned to the Upper Ludlovian-Pridolian? Relation bet ween palynomorph asemblages distribution and depositional paleoevironment is analyzed.

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