Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil
Cibele Gasparelo Voltani, Gabriel Ladeira Osés, Bernardo Tavares Freitas, Gustavo Marcondes Evangelista Martins Prado, Rosemarie Rohn, Mírian Liza Alves Forancelli Pacheco, Luiz Eduardo Anelli, Renato Paes de Almeida, Marcello Guimarães Simões, Ludmila Alves Caldeira do Prado, Rilda Verônica Cardoso...
Cibele Gasparelo Voltani, Gabriel Ladeira Osés, Bernardo Tavares Freitas, Gustavo Marcondes Evangelista Martins Prado, Rosemarie Rohn, Mírian Liza Alves Forancelli Pacheco, Luiz Eduardo Anelli, Renato Paes de Almeida, Marcello Guimarães Simões, Ludmila Alves Caldeira do Prado, Rilda Verônica Cardoso de Araripe, Douglas Galante, Elidiane Cipriano Rangel
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Agradecimentos: This research used facilities of the Brazilian Synchrotron Light Laboratory (LNLS) and of the Brazilian Nanotechnology National Laboratory (LNNano), part of the Brazilian Centre for Research in Energy and Materials (CNPEM), a private non-profit organization under the supervision of...
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Agradecimentos: This research used facilities of the Brazilian Synchrotron Light Laboratory (LNLS) and of the Brazilian Nanotechnology National Laboratory (LNNano), part of the Brazilian Centre for Research in Energy and Materials (CNPEM), a private non-profit organization under the supervision of the Brazilian Ministry for Science, Technology, and Innovations (MCTI). The SR-microXRF and Electron Microscopy staff is acknowledged for the assistance during the experiments (proposals XRF-20170713 and SEM-23632). We also acknowledge laboratory analyses conducted at the Laboratory of Technological Plasmas (LaPTec) and its technical staff for support in the SEM/EDS analyzes. We thank the Laboratory of Astrobiology (AstroLab), particularly Evandro P. da Silva and Prof. Fabio Rodrigues, from the Institute of Chemistry, University of São Paulo (IQ/USP) for support in the micro Raman analyzes. We acknowledge the support of Dr. Carlos Perez (SR-microXRF). The authors are deeply indebted to the Cretaceous Research editor Dr. Eduardo Koutsoukos, Dr. Franz T. Fürsich, and an anonymous referee whose corrections, suggestions, and modifications improved the last version of this contribution. The first author thanks Suzana Aparecida Matos and Talita Gabriela Souza for their collaboration in the examination of fossil specimens deposited in the scientific collection of Unesp, Botucatu campus, in November 2021. Juliana de Moraes Leme (access to IGc/USP photographic equipment), Ivone Cardoso Gonzales (sample numbering into LPS/USP), Paula Sucerquia (identifying plant flat mold), Cléber Quidute Clemente Diniz (pictures in Fig. S2), and Estevan Eltink Nogueira (for the discussions) are also acknowledged. Partial financial support was provided by Sao Paulo Research Foundation (FAPESP) through research grants [2016/03091-5, 2014/16739-8, 2009/53363-8]. GLO and MLAFP acknowledge funding from FAPESP PhD scholarship [2017/21584-1], GLO acknowledges funding from FAPESP postdoctoral scholarship [2021/07007-7], a project supervised by Prof. Marcia Rizzutto. DG acknowledges funding from FAPESP grant [2021/05083-8] and from the Brazilian Council for Scientific and Technological Development, grant [310817/2020-0]. LACP thanks Fundação Cearense de Apoio ao Desenvolvimento Científico e Tecnológico (FUNCAP) grant [01326694/2022] for a visiting researcher fellowship. MGS is a CNPq fellow. CGV offers special thanks for fieldwork support, discussions, and availability for RPA, LEA, GLO, BTF, and RR. GLO acknowledges the Programa de Pós-Doutorado of the Institute of Physics, University of São Paulo, the Programa de Pós-Graduação em Ecologia e Recursos Naturais (UFSCar), and GMEMP thanks the Programa de Pós-graduação em Geoquímica e Geotectônica (USP)
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Abstract: The Aptian–Albian Amargosa Bed, Tucano Basin, which was recently considered as a Konservat-Lagerstätten, is a relatively thin, siliciclastic-dominated succession of yellowish and grayish papyraceous shales. We analyzed the taphonomy of fishes, gastric ejecta, freshwater shrimps and...
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Abstract: The Aptian–Albian Amargosa Bed, Tucano Basin, which was recently considered as a Konservat-Lagerstätten, is a relatively thin, siliciclastic-dominated succession of yellowish and grayish papyraceous shales. We analyzed the taphonomy of fishes, gastric ejecta, freshwater shrimps and conchostracans, euryaline ostracods, and plants. Fish biostratinomic signatures indicate point to changes in water alkalinity/salinity as their causa mortis, occasionally subject to weak currents. The preferential preservation of flexed shrimps and isolated pleons corroborates this interpretation. Conchostracans, recorded in distinct levels, indicate episodes of mass mortality, variable transport and temporal mixing, and at least one faunal change. During the fossilization, primary P and Ca from shrimps and fishes probably generated phosphates, which finally altered to Fe oxy-/hydroxides, yielding a mixed elemental composition, not expressed in other mineralogies than Fe oxy-/hydroxides. The original calcite of ostracod valves likely has been dissolved/replaced by a K-rich aluminosilicate, or by a precursor phase. Plants were preserved by Fe oxy-/hydroxides or by kerogenisation. Previous studies show that marine ingression of Tethyan waters into the central segment of the proto-South Atlantic gulf flooded the continental scale axial river system captured by the Tucano rift basin, affecting base level up to the Araripe Basin. Here it is interpreted that tributary river systems with relatively steeper stream gradients were less affected by marine transgression than the axial system, resulting in local freshwater riverine influx across the elongated epeiric sea developed over the interior rift basins of NE-Brazil, resulting in a mixed biota of distinct water salinities that alternate in the Amargosa Bed type-section
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FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2009/53363-8; 2014/16739-8; 2016/03091-5; 2017/21584-1; 2021/07007-7; 2021/05083-8
Fundação Cearense de Apoio ao Desenvolvimento Científico e Tecnológico
01326694/2022
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
Fechado
Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil
Cibele Gasparelo Voltani, Gabriel Ladeira Osés, Bernardo Tavares Freitas, Gustavo Marcondes Evangelista Martins Prado, Rosemarie Rohn, Mírian Liza Alves Forancelli Pacheco, Luiz Eduardo Anelli, Renato Paes de Almeida, Marcello Guimarães Simões, Ludmila Alves Caldeira do Prado, Rilda Verônica Cardoso...
Cibele Gasparelo Voltani, Gabriel Ladeira Osés, Bernardo Tavares Freitas, Gustavo Marcondes Evangelista Martins Prado, Rosemarie Rohn, Mírian Liza Alves Forancelli Pacheco, Luiz Eduardo Anelli, Renato Paes de Almeida, Marcello Guimarães Simões, Ludmila Alves Caldeira do Prado, Rilda Verônica Cardoso de Araripe, Douglas Galante, Elidiane Cipriano Rangel
Taphonomy of fish, invertebrates and plant remains in the first Tethyan-South Atlantic marine ingression along Cretaceous rift systems in NE-Brazil
Cibele Gasparelo Voltani, Gabriel Ladeira Osés, Bernardo Tavares Freitas, Gustavo Marcondes Evangelista Martins Prado, Rosemarie Rohn, Mírian Liza Alves Forancelli Pacheco, Luiz Eduardo Anelli, Renato Paes de Almeida, Marcello Guimarães Simões, Ludmila Alves Caldeira do Prado, Rilda Verônica Cardoso...
Cibele Gasparelo Voltani, Gabriel Ladeira Osés, Bernardo Tavares Freitas, Gustavo Marcondes Evangelista Martins Prado, Rosemarie Rohn, Mírian Liza Alves Forancelli Pacheco, Luiz Eduardo Anelli, Renato Paes de Almeida, Marcello Guimarães Simões, Ludmila Alves Caldeira do Prado, Rilda Verônica Cardoso de Araripe, Douglas Galante, Elidiane Cipriano Rangel
Fontes
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Cretaceous research v. 147, n. art. 105508, July 2023 |