2002
DOI: 10.1590/s0001-37652002000300011
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Megaspores from coals of the Triunfo Member, Rio Bonito Formation (Lower Permian), northeastern Paraná State, Brazil

Abstract: 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 … Show more

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Cited by 18 publications
(7 citation statements)
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“…Dispersed lycophyte megaspores are abundant and diverse throughout the Permian of Gondwana (Bharadwaj and Tiwari 1970;Glasspool 2000Glasspool , 2003Ricardi-Branco et al 2002;Slater et al 2011) and are also subsidiary components of Carboniferous and Triassic permineralized peats (Willard et al 1995;McLoughlin and Strullu-Derrien 2016). The specimen documented in this study appears to lack any significant ornamentation, and it is too compressed and degraded for adequate identification.…”
Section: Resultsmentioning
confidence: 74%
“…Dispersed lycophyte megaspores are abundant and diverse throughout the Permian of Gondwana (Bharadwaj and Tiwari 1970;Glasspool 2000Glasspool , 2003Ricardi-Branco et al 2002;Slater et al 2011) and are also subsidiary components of Carboniferous and Triassic permineralized peats (Willard et al 1995;McLoughlin and Strullu-Derrien 2016). The specimen documented in this study appears to lack any significant ornamentation, and it is too compressed and degraded for adequate identification.…”
Section: Resultsmentioning
confidence: 74%
“…This species was also found in the states of Paran a (Arai and R€ osler, 1984;Ricardi-Branco et al, 2002), Santa Catarina (Dijkstra, 1956;Trindade, 1959;Pant and Srivastava, 1962), and Rio Grande do Sul (Dijkstra, 1956;Trindade, 1962Trindade, , 1964Trindade, , 1966Pant and Srivastava, 1962;Cauduro and Zigano, 1965;Marques-Toigo et al, 1975;Bortoluzzi and Veiga, 1981).…”
Section: Microfossil Remainsmentioning
confidence: 84%
“…Megasporas guladas del Devónico Tardío y Mississippiano, caracterizadas por tener una prominencia apical o gula bien desarrollada, han sido descriptas dentro de asociaciones halladas en América del Norte (e.g., Chaloner 1954, Winslow 1962, Glasspool et al 2000 y Europa (Mortimer et al 1970, Hemsley et al 1994, mientras que en América del Sur fueron descriptas principalmente en depósitos del Pennsylvaniano y Pérmico (e.g. Arai y Rösler 1984, Archangelsky et al 1989, Cúneo et al 1991, Ricardi-Branco et al 2002, Amaral y Ricardi-Branco 2004, Mune et al 2011.…”
Section: Megasporas Guladasunclassified
“…La morfología de megasporas guladas ha sido descripta por diferentes autores (e.g., Dybová-Jachowicz et al 1979, 1982, 1984, 1987, Archangelsky et al 1989, Cúneo et al 1991, Ricardi-Branco et al 2002, Arioli et al 2007, Wellman et al 2009, Steemans et al 2011 1993). En cuanto a la ultraestructura de la pared, varias megasporas guladas, dispersas o in situ han sido estudiadas por algunos autores (e.g., Taylor 1990, Glasspool et al 2000, Arioli et al 2007, Wellman et al 2009) los que coinciden que todas tienen una ultraestructura muy similar dado que el exosporio es esencialmente de naturaleza esponjosa.…”
Section: Megasporas Guladasunclassified
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