First Ediacaran Fauna Occurrence in Northeastern Brazil (Jaibaras Basin, ?Ediacaran-Cambrian): Preliminary Results and Regional Correlation
This study reports the first known occurrence of the Ediacaran fauna in northeastern Brazil (at Pacujá Municipality, northwestern state of Ceará) and presents preliminary interpretations of its significance. Regional correlation indicates that the fossils originated in the Jaibaras Basin and that th...
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Online Access: | https://doi.org/10.1590/0001-3765201420130162 https://doaj.org/article/3e6606f6264b4d6e9eab823d67512a81 |
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ftdoajarticles:oai:doaj.org/article:3e6606f6264b4d6e9eab823d67512a81 2023-05-15T18:43:48+02:00 First Ediacaran Fauna Occurrence in Northeastern Brazil (Jaibaras Basin, ?Ediacaran-Cambrian): Preliminary Results and Regional Correlation FRANCISCO R.G. BARROSO MARIA SOMÁLIA S. VIANA MARIO F. DE LIMA FILHO SONIA M.O. AGOSTINHO 2014-09-01T00:00:00Z https://doi.org/10.1590/0001-3765201420130162 https://doaj.org/article/3e6606f6264b4d6e9eab823d67512a81 EN eng Academia Brasileira de Ciências http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301029&lng=en&tlng=en https://doaj.org/toc/1678-2690 1678-2690 doi:10.1590/0001-3765201420130162 https://doaj.org/article/3e6606f6264b4d6e9eab823d67512a81 Anais da Academia Brasileira de Ciências, Vol 86, Iss 3, Pp 1029-1042 (2014) Brasil estado do Ceará fauna de Ediacara ambiente transicional Assembleia White Sea Science Q article 2014 ftdoajarticles https://doi.org/10.1590/0001-3765201420130162 2022-12-31T14:14:15Z This study reports the first known occurrence of the Ediacaran fauna in northeastern Brazil (at Pacujá Municipality, northwestern state of Ceará) and presents preliminary interpretations of its significance. Regional correlation indicates that the fossils originated in the Jaibaras Basin and that they may represent a new geological system. The depositional environment can be attributed to a fluviomarine system. Nine Ediacaran species can be identified, including members of pandemic groups (e.g., Charniodiscus arboreus Glaessner, 1959; ?Charniodiscus concentricus Ford, 1958; Cyclomedusa davidi Sprigg, 1947; Ediacaria flindersi Sprigg, 1947; and Medusinites asteroides Sprigg, 1949) and endemic groups (e.g., Kimberella quadrata Glaessner & Wade, 1966; Palaeophragmodictya reticulata Gehling & Rigby, 1996; Parvancorina minchami Glaessner, 1958; and Pectinifrons abyssalis Bamforth, Narbonne, Anderson, 2008). Three ichnogenera are also present: Arenicolites Salter, 1857; Palaeophycus Hall, 1987; and Planolites Nicholson, 1873. The relative age of the deposits is between ?Ediacaran and Cambrian, and the fauna resembles the White Sea Assemblage. The bioturbation presents typical unbranched Ediacaran ichnogenera with little depth in the substrate. This previously unknown occurrence of the Ediacaran fauna reinforces the importance of the state of Ceará to Brazilian and global palaeontology. Article in Journal/Newspaper White Sea Directory of Open Access Journals: DOAJ Articles White Sea Nicholson ENVELOPE(78.236,78.236,-68.612,-68.612) Rigby ENVELOPE(-154.583,-154.583,-85.550,-85.550) Anais da Academia Brasileira de Ciências 86 3 1029 1042 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Brasil estado do Ceará fauna de Ediacara ambiente transicional Assembleia White Sea Science Q |
spellingShingle |
Brasil estado do Ceará fauna de Ediacara ambiente transicional Assembleia White Sea Science Q FRANCISCO R.G. BARROSO MARIA SOMÁLIA S. VIANA MARIO F. DE LIMA FILHO SONIA M.O. AGOSTINHO First Ediacaran Fauna Occurrence in Northeastern Brazil (Jaibaras Basin, ?Ediacaran-Cambrian): Preliminary Results and Regional Correlation |
topic_facet |
Brasil estado do Ceará fauna de Ediacara ambiente transicional Assembleia White Sea Science Q |
description |
This study reports the first known occurrence of the Ediacaran fauna in northeastern Brazil (at Pacujá Municipality, northwestern state of Ceará) and presents preliminary interpretations of its significance. Regional correlation indicates that the fossils originated in the Jaibaras Basin and that they may represent a new geological system. The depositional environment can be attributed to a fluviomarine system. Nine Ediacaran species can be identified, including members of pandemic groups (e.g., Charniodiscus arboreus Glaessner, 1959; ?Charniodiscus concentricus Ford, 1958; Cyclomedusa davidi Sprigg, 1947; Ediacaria flindersi Sprigg, 1947; and Medusinites asteroides Sprigg, 1949) and endemic groups (e.g., Kimberella quadrata Glaessner & Wade, 1966; Palaeophragmodictya reticulata Gehling & Rigby, 1996; Parvancorina minchami Glaessner, 1958; and Pectinifrons abyssalis Bamforth, Narbonne, Anderson, 2008). Three ichnogenera are also present: Arenicolites Salter, 1857; Palaeophycus Hall, 1987; and Planolites Nicholson, 1873. The relative age of the deposits is between ?Ediacaran and Cambrian, and the fauna resembles the White Sea Assemblage. The bioturbation presents typical unbranched Ediacaran ichnogenera with little depth in the substrate. This previously unknown occurrence of the Ediacaran fauna reinforces the importance of the state of Ceará to Brazilian and global palaeontology. |
format |
Article in Journal/Newspaper |
author |
FRANCISCO R.G. BARROSO MARIA SOMÁLIA S. VIANA MARIO F. DE LIMA FILHO SONIA M.O. AGOSTINHO |
author_facet |
FRANCISCO R.G. BARROSO MARIA SOMÁLIA S. VIANA MARIO F. DE LIMA FILHO SONIA M.O. AGOSTINHO |
author_sort |
FRANCISCO R.G. BARROSO |
title |
First Ediacaran Fauna Occurrence in Northeastern Brazil (Jaibaras Basin, ?Ediacaran-Cambrian): Preliminary Results and Regional Correlation |
title_short |
First Ediacaran Fauna Occurrence in Northeastern Brazil (Jaibaras Basin, ?Ediacaran-Cambrian): Preliminary Results and Regional Correlation |
title_full |
First Ediacaran Fauna Occurrence in Northeastern Brazil (Jaibaras Basin, ?Ediacaran-Cambrian): Preliminary Results and Regional Correlation |
title_fullStr |
First Ediacaran Fauna Occurrence in Northeastern Brazil (Jaibaras Basin, ?Ediacaran-Cambrian): Preliminary Results and Regional Correlation |
title_full_unstemmed |
First Ediacaran Fauna Occurrence in Northeastern Brazil (Jaibaras Basin, ?Ediacaran-Cambrian): Preliminary Results and Regional Correlation |
title_sort |
first ediacaran fauna occurrence in northeastern brazil (jaibaras basin, ?ediacaran-cambrian): preliminary results and regional correlation |
publisher |
Academia Brasileira de Ciências |
publishDate |
2014 |
url |
https://doi.org/10.1590/0001-3765201420130162 https://doaj.org/article/3e6606f6264b4d6e9eab823d67512a81 |
long_lat |
ENVELOPE(78.236,78.236,-68.612,-68.612) ENVELOPE(-154.583,-154.583,-85.550,-85.550) |
geographic |
White Sea Nicholson Rigby |
geographic_facet |
White Sea Nicholson Rigby |
genre |
White Sea |
genre_facet |
White Sea |
op_source |
Anais da Academia Brasileira de Ciências, Vol 86, Iss 3, Pp 1029-1042 (2014) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301029&lng=en&tlng=en https://doaj.org/toc/1678-2690 1678-2690 doi:10.1590/0001-3765201420130162 https://doaj.org/article/3e6606f6264b4d6e9eab823d67512a81 |
op_doi |
https://doi.org/10.1590/0001-3765201420130162 |
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Anais da Academia Brasileira de Ciências |
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86 |
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3 |
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1029 |
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1042 |
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