The oldest record of Ediacaran macrofossils in Gondwana (~563 Ma, Itajaí Basin, Brazil)
International audience The Avalon biota (Ediacaran Period, 570–559 Ma) marks the first appearance of macroscopic and complex benthic communities in the fossil record. This assemblage is known from a few localities worldwide, mainly in Canada and England. Here, we report for the first time the presen...
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ftinsu:oai:HAL:hal-02566926v1 2024-04-14T08:20:46+00:00 The oldest record of Ediacaran macrofossils in Gondwana (~563 Ma, Itajaí Basin, Brazil) Becker-Kerber, Bruno Paim, Paulo Sergio Gomes Junior, Farid Chemale Girelli, Tiago Jonatan da Rosa, Ana Lucia Zucatti El Albani, Abderrazzak Osés, Gabriel Prado, Gustavo M.E.M. Figueiredo, Milene Simões, Luiz Sérgio Amarante Pacheco, Mírian Liza Alves Forancelli Universidade Federal de São Carlos São Carlos (UFSCar) Institut de Chimie des Milieux et Matériaux de Poitiers UMR 7285 (IC2MP Poitiers ) Université de Poitiers = University of Poitiers (UP)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) Universidade do Vale do Rio dos Sinos (UNISINOS) Petrobras Rio de Janeiro Universidade de São Paulo = University of São Paulo (USP) Petrobras Research Center (CENPES) Petrobras Universidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University (UNESP) 2020-05 https://hal.science/hal-02566926 https://doi.org/10.1016/j.gr.2020.03.007 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gr.2020.03.007 hal-02566926 https://hal.science/hal-02566926 doi:10.1016/j.gr.2020.03.007 ISSN: 1342-937X EISSN: 1878-0571 Gondwana Research https://hal.science/hal-02566926 Gondwana Research, 2020, ⟨10.1016/j.gr.2020.03.007⟩ [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology info:eu-repo/semantics/article Journal articles 2020 ftinsu https://doi.org/10.1016/j.gr.2020.03.007 2024-03-21T17:20:01Z International audience The Avalon biota (Ediacaran Period, 570–559 Ma) marks the first appearance of macroscopic and complex benthic communities in the fossil record. This assemblage is known from a few localities worldwide, mainly in Canada and England. Here, we report for the first time the presence of Ediacaran macrofossils in deposits of similar age from Gondwana (Itajaí Basin, southern Brazil). Our new radiometric date (~563 Ma) indicates that the Itajaí Basin can be chronocorrelated with the classic Avalonian deposits and thus represents one of the oldest records of the Ediacaran biota in Gondwana. We describe the presence of the Ediacaran genus Palaeopascichnus, as well as discs (Aspidella and Nimbia), and other problematic forms. Contrary to the deep-marine macroorganisms of the Avalon Assemblage, the Itajaí fossils are associated with abundant and exceptionally preserved three-dimensional microbial mats and microbially induced sedimentary structures (MISS) in relatively shallow settings (upper slope and distal delta front deposits). In this sense, the Itajaí biota could represent early adaptations of benthic macrobiota to the shallower and more photic environments that characterize the later White Sea Assemblage. Article in Journal/Newspaper White Sea Institut national des sciences de l'Univers: HAL-INSU Canada White Sea Gondwana Research 84 211 228 |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology |
spellingShingle |
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology Becker-Kerber, Bruno Paim, Paulo Sergio Gomes Junior, Farid Chemale Girelli, Tiago Jonatan da Rosa, Ana Lucia Zucatti El Albani, Abderrazzak Osés, Gabriel Prado, Gustavo M.E.M. Figueiredo, Milene Simões, Luiz Sérgio Amarante Pacheco, Mírian Liza Alves Forancelli The oldest record of Ediacaran macrofossils in Gondwana (~563 Ma, Itajaí Basin, Brazil) |
topic_facet |
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology |
description |
International audience The Avalon biota (Ediacaran Period, 570–559 Ma) marks the first appearance of macroscopic and complex benthic communities in the fossil record. This assemblage is known from a few localities worldwide, mainly in Canada and England. Here, we report for the first time the presence of Ediacaran macrofossils in deposits of similar age from Gondwana (Itajaí Basin, southern Brazil). Our new radiometric date (~563 Ma) indicates that the Itajaí Basin can be chronocorrelated with the classic Avalonian deposits and thus represents one of the oldest records of the Ediacaran biota in Gondwana. We describe the presence of the Ediacaran genus Palaeopascichnus, as well as discs (Aspidella and Nimbia), and other problematic forms. Contrary to the deep-marine macroorganisms of the Avalon Assemblage, the Itajaí fossils are associated with abundant and exceptionally preserved three-dimensional microbial mats and microbially induced sedimentary structures (MISS) in relatively shallow settings (upper slope and distal delta front deposits). In this sense, the Itajaí biota could represent early adaptations of benthic macrobiota to the shallower and more photic environments that characterize the later White Sea Assemblage. |
author2 |
Universidade Federal de São Carlos São Carlos (UFSCar) Institut de Chimie des Milieux et Matériaux de Poitiers UMR 7285 (IC2MP Poitiers ) Université de Poitiers = University of Poitiers (UP)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) Universidade do Vale do Rio dos Sinos (UNISINOS) Petrobras Rio de Janeiro Universidade de São Paulo = University of São Paulo (USP) Petrobras Research Center (CENPES) Petrobras Universidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University (UNESP) |
format |
Article in Journal/Newspaper |
author |
Becker-Kerber, Bruno Paim, Paulo Sergio Gomes Junior, Farid Chemale Girelli, Tiago Jonatan da Rosa, Ana Lucia Zucatti El Albani, Abderrazzak Osés, Gabriel Prado, Gustavo M.E.M. Figueiredo, Milene Simões, Luiz Sérgio Amarante Pacheco, Mírian Liza Alves Forancelli |
author_facet |
Becker-Kerber, Bruno Paim, Paulo Sergio Gomes Junior, Farid Chemale Girelli, Tiago Jonatan da Rosa, Ana Lucia Zucatti El Albani, Abderrazzak Osés, Gabriel Prado, Gustavo M.E.M. Figueiredo, Milene Simões, Luiz Sérgio Amarante Pacheco, Mírian Liza Alves Forancelli |
author_sort |
Becker-Kerber, Bruno |
title |
The oldest record of Ediacaran macrofossils in Gondwana (~563 Ma, Itajaí Basin, Brazil) |
title_short |
The oldest record of Ediacaran macrofossils in Gondwana (~563 Ma, Itajaí Basin, Brazil) |
title_full |
The oldest record of Ediacaran macrofossils in Gondwana (~563 Ma, Itajaí Basin, Brazil) |
title_fullStr |
The oldest record of Ediacaran macrofossils in Gondwana (~563 Ma, Itajaí Basin, Brazil) |
title_full_unstemmed |
The oldest record of Ediacaran macrofossils in Gondwana (~563 Ma, Itajaí Basin, Brazil) |
title_sort |
oldest record of ediacaran macrofossils in gondwana (~563 ma, itajaí basin, brazil) |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-02566926 https://doi.org/10.1016/j.gr.2020.03.007 |
geographic |
Canada White Sea |
geographic_facet |
Canada White Sea |
genre |
White Sea |
genre_facet |
White Sea |
op_source |
ISSN: 1342-937X EISSN: 1878-0571 Gondwana Research https://hal.science/hal-02566926 Gondwana Research, 2020, ⟨10.1016/j.gr.2020.03.007⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gr.2020.03.007 hal-02566926 https://hal.science/hal-02566926 doi:10.1016/j.gr.2020.03.007 |
op_doi |
https://doi.org/10.1016/j.gr.2020.03.007 |
container_title |
Gondwana Research |
container_volume |
84 |
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211 |
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228 |
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