ESTUDIO PALINOLOGICO DE LA FORMACIÓN PASO DEL SAPO (CRETACICO SUPERIOR), VALLE MEDIO DEL RIO CHUBUT. GRANOS DE POLEN, CONSIDERACIONES ESTADISTICAS, PALEOECOLOGICAS y PALEOAMBIENTALES

Oscar H. Papu

Abstract


Seventeen species of pollen grains are described and illustrated. They belong to the following genera: Podocarpidites, Microcachrydites, Araucariaciies, Cycadopites, Entylissa, Liliacidites, Tricolpites, Rousea, P silatricolpites, M omipites, Triporopollenites, Triatriopollenites and Anacolosidites. The statistical study reveals that the microflora was deposited in a transitional enviromnent, characterized by humid conditions. The latter are indicated by the high fresquencies of trilete and monolete spores and monosulcate grains.

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