Megaspores from coals of the Triunfo Member, Rio Bonito Formation (Lower Permian), northeastern Paraná State, Brazil

Anais da Academia Brasileira de Ciências

Fresia Ricardi-branco²  Mitsuru Arai¹  Oscar RÖsler¹ 

[1] ,UNICAMP Instituto de Geociências Departamento de Administração e Política de Recursos MineraisCampinas,Brazil

关键词: megaspores;    Permian;    Rio Bonito Formation;    Paraná Basin;    megásporos;    Permiano;    Formação Rio Bonito;    Bacia do Paraná;   

DOI  :  10.1590/S0001-37652002000300011

来源: SciELO

【 摘 要 】

This paper presents the results of a detailed study of megaspores occurring in coal seams of the Triunfo Member, Rio Bonito Formation at Figueira, Paraná State, Brazil. This coal-bearing sequence accumulated in a marine delta system during the Early Permian. Four species are described and illustrated: Lagenoisporites triunfensis, L. scutiformis, Sublagenicula cf. brasiliensis, and Setosisporites cf. furcatus. Of these, the two species of Lagenoisporites are predominant. Relationships to other megaspore species are discussed; and the temporal and spatial distributions of the four species in the Paraná Basin are documented.

【 授权许可】

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