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	Provedor de dados Anais da ABC (AABC) (2) Autor ARAI,MITSURU (1) MACLUF,CECILIA (1) PASQUO,MERCEDES DI (1) QUETGLAS,MARCELA (1) RICARDI-BRANCO,FRESIA (1) RÖSLER,OSCAR (1) Mais... Palavra-chave Megaspores (2) Bolivia (1) Carboniferous (1) Lycopsids (1) Paraná Basin (1) Permian (1) Rio Bonito Formation (1) Tournaisian (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2019 (1) 2002 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Megaspores from coals of the Triunfo Member, Rio Bonito Formation (Lower Permian), northeastern Paraná State, Brazil Anais da ABC (AABC) RICARDI-BRANCO,FRESIA; ARAI,MITSURU; RÖSLER,OSCAR. 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. Tipo: Info:eu-repo/semantics/article Palavras-chave: Megaspores; Permian; Rio Bonito Formation; Paraná Basin. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000300011 Morphology of the megaspore Lagenoisporites magnus (Chi and Hills 1976) Candilier et al. (1982), from the Carboniferous (lower Mississippian: mid-upper Tournaisian) of Bolivia Anais da ABC (AABC) QUETGLAS,MARCELA; MACLUF,CECILIA; PASQUO,MERCEDES DI. Abstract: The morphology and structure of megaspores assigned to Lagenoisporites magnus from the Toregua Formation, Retama Group, mid-upper Tournaisian of Bolivia were studied. The analysis was performed with light, fluorescence and scanning electron microscopy. Megaspores were laterally compressed and presented a spherical body with a proximal gula, of the hologula type. Gula had verrucae ornamentation and the spore body presented complex processes consisting of a bulbous base and an internally partitioned projection with sharp apex. In addition to this main ornamentation, perforations were present throughout the spore surface. Megaspores showed well marked curvaturae perfectae due to the abrupt transition existing between the gula ornamentation and the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bolivia; Carboniferous; Lycopsids; Megaspores; Tournaisian. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000400515 Registros recuperados: 2 Primeira ... 1 ... Última

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