ESTUDIO PALINOLÓGICO DEL MIEMBRO INFERIOR DE LA FORMACIÓN PACHACO, TERCIARIO DE LA PROVINCIA DE SAN JUAN. DESCRIPCIONES SISTEMÁTICAS.

Mercedes B. Prámparo, Oscar H. Papu, Juan P. Milana

Abstract


The systematic results obtained from the palynological study of the basal member of Pachaco Formation, Paleogene, Precordillera Central, San Juan Province, is presented in this contribution. The samples were taken from four levels of two outcropping sections of this formation (the northem and the southem one). Twenty five species of spores and pollen grains belonging to the following genera: Todisporites, Divisisporites, Po/ypodiidites, Ephedripites, Podocarpidites, Dacrydiumites, Protodiploxypinus, microcachryidites, Tricolpites, Psi/atricolpites, Nothofagidites, Sparganiaceaepollenites, Ailanthipites, Rhoipites, Margocolporites, Smilacipites, Potamogetonaceaepites, Myrtaceidites and Polyporina, are described.

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