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Ameghiniana
versão On-line ISSN 1851-8044
Resumo
LLORENS, Magdalena. Palynological Study Of The Punta Del Barco Formation, Lower Cretaceous Of Santa Cruz Province, Argentina: Systematic Descriptions I: Monolete And Smooth And Cingulate Trilete Spores. Ameghiniana [online]. 2008, vol.45, n.1, pp.153-166. ISSN 1851-8044.
Smooth and cingulate trilete and monolete disperse spores from the Punta del Barco Formation, Lower Cretaceous of Santa Cruz Province are being described in this paper. The trilete spores belong to the genera Biretisporites, Deltoidospora, Todisporites, Cyathidites, Densoisporites, Foraminisporis, Contignisporites, Laevigatosporites and Reticulosporis. The last genus is mentioned for the first time in Argentina, and is one of the oldest known records. Some of these taxa represent vegetal groups no reported for this taphoflora, enlarging therefore its previous knowledge.
Palavras-chave : Palynology; Systematic; Lower Cretaceous; Santa Cruz Province; Argentina.