Licófitas Cormofíticas Arborescentes do Afloramento Quitéria Formação do Rio Bonito (Bacia do Paraná), RS

Autores

  • ANDRÉ JASPER Fundação Alto Taquari de Ensino Superior/ FATES
  • MARGOT GUERRA-SOMMER Instituto de Geociências/ UFRGS

DOI:

https://doi.org/10.22456/1807-9806.21173

Palavras-chave:

lycopods, Lower Permian, Parana Basin

Resumo

This study reports on a in situ lycopod assemblage of stumps and trunks from a sand-rich coaly section of the Rio Bonito Formation (Artinskian – Kungurian) in Rio Grande do Sul state. These dense tickets of arborescent forms have been found in situ; their cormose rooting systems are “non stigmarioid”. The variation observed, from elliptical (Brasilodendron type) to rhomboidal (Lycopodiopsis type) leaf cushion in the same specimen indicates that both can represent different levels in the same trunk. Considering that the South Brazilian coals are mainly hipoautochthonous, lycopods of Brasilodendron type could be dominants in the plant forming association of the peat.


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Publicado

1998-06-30

Como Citar

JASPER, A., & GUERRA-SOMMER, M. (1998). Licófitas Cormofíticas Arborescentes do Afloramento Quitéria Formação do Rio Bonito (Bacia do Paraná), RS. Pesquisas Em Geociências, 25(1), 43–60. https://doi.org/10.22456/1807-9806.21173

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