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

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

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 illustrate...

Full description

Bibliographic Details
Main Authors: FRESIA RICARDI-BRANCO, MITSURU ARAI, OSCAR RÖSLER
Format: Article
Language:English
Published: Academia Brasileira de Ciências 2002-09-01
Series:Anais da Academia Brasileira de Ciências
Subjects:
megásporos
Permiano
Formação Rio Bonito
Bacia do Paraná
megaspores
Permian
Rio Bonito Formation
Paraná Basin
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000300011
Description
Summary: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.<br>No presente trabalho são apresentados os resultados obtidos a partir do estudo sistemático detalhado dos megásporos provenientes das camadas de carvão do Membro Triunfo, Formação Rio Bonito, Estado do Paraná, Brasil. A seqüência portadora de carvão, foi o resultado do acúmulo de matéria orgânica num de sistema deltaico marinho durante o Eopermiano. Quatro espécies são aqui descritas e ilustradas: Lagenoisporites triunfensis, L. scutiformis, Sublagenicula cf. brasiliensis, e Setosisporites cf. furcatus. Destas, as duas espécies de Lagenoisporites são dominantes. São igualmente discutidas as relações existentes com outras espécies de megásporos, assim como documentada a distribuição temporal e espacial das quatro espécies na Bacia do Paraná.
ISSN:0001-3765
1678-2690

Similar Items