Estudio palinologico de la Formacion Piedra Pintada, Jurasico inferior da la Cuenca Neuquina (Argentina)

M Arguijo, W Volkheimer, U Rosenfeld

Resumo


This is a study of four microfloristic assemblages, in which the terrestrial species (43) are prevailing. The genera present are Deltoidospora, Alsophilidites, Dictyophyllidites, Lygodiumsporites, Concavisporites, Verrucosisporites, Leptolepidites, Foveosporites, Granulat isporit es, Baculatisporites, Lycopodiumsporites, Gleicheniidites, Antulsporites, Interulobites, Nevesisporites, Taurocusporites, Peromonolites, Vitreisporites, Alisporites, Podocarpidites, Phrixipollenites, Microcachryidites, Inaperturopollenites, Araucariacites, Perinopollenites, Classopollis, Cycadopites and Monosulcites, and the marine genera Pleurozonaria and Leiosphaeridia. The age indicated by the microflora (Nevesiporites vallatus-Assemblage, previous to the income of Callialasporites spp.), is the pre-upper Toarcian Lower Jurassic.

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