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  • 标题:DUAS NOVAS ICNOESPÉCIES DE BIFUNGITES DESIO, 1940 NA FORMAÇÃO PIMENTEIRA, DEVONIANO DA BACIA DO PARNAÍBA, BRASIL 1
  • 作者:SONIA AGOSTINHO MARIA SOMÁLIA SALES VIANA ANTONIO CARLOS SEQUEIRA FERNANDES
  • 期刊名称:Arquivos do Museu Nacional
  • 印刷版ISSN:0365-4508
  • 出版年度:2004
  • 卷号:62
  • 期号:04
  • 页码:519-530
  • 出版社:Museu Nacional Rio de Janeiro
  • 摘要:Two new ichnospecies of Bifungites Desio, 1940 from the Pimenteira Formation, Devonian of Parnaíba Basin, Brazil. This paper describes two new ichnospecies, Bifungites munizi isp.nov. and Bifungites piauiensis isp.nov., that occur in sandstones of the Pimenteira Formation (Devonian, Parnaíba Basin), in the Piauí State, Brazil. Bifungites munizi isp.nov. is morphologically characterized by different terminations, one of which is reniform and the other is dumbbell-like. Bifungites piauiensis isp.nov. shows a horizontal, straight and subcircular shaft, with double arrow-shaped terminations which bases have projections with angles of 10º to 35º. The morphological characteristics and dimensions of the two new ichnospecies allow their differenciation from other ichnospecies of Bifungites, resulting in two new ichnotaxa of this ichnogenus in the Brazilian Devonian.
  • 关键词:Ichnology, Pimenteira Formation, Devonian, Parnaíba Basin, Bifungites.
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