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Cisuralian brachiopods of the Itararé group (Mafra and Taciba formations), Paraná Basin, Brazil, and their geologic significance

Grant number: 13/25317-7
Support Opportunities:Scholarships in Brazil - Post-Doctorate
Effective date (Start): May 01, 2014
Effective date (End): September 14, 2016
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geology
Principal Investigator:Marcello Guimarães Simões
Grantee:Jacqueline Peixoto Neves
Host Institution: Instituto de Biociências (IBB). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil


Late Paleozoic marine invertebrate assemblages in Gondwanian basins of South America, especially in Brazil, are characterized by the presence of brachiopods, bivalves, gastropods and echinoderms, among others. Brachiopods of the Permian succession of the Parana Basin have restrict vertical and horizontal distribution, but even in this context they are key elements to biocorrelations with other late Paleozoic marine deposits of South America and Australia. The age and affinities of the marine invertebrate assemblages in such countries are better constrained with international biostratigraphical schemes. Notably, six decades after the first mention of the brachiopods in the literature of the Itararé Group they still known only by references that appear in taxonomic lists. Despite of that there are several interesting questions to be answered, as follow: A- What are the affinities and age of those brachiopods? B- Why some deposits record bivalve-rich assemblages (Teixeira Soares) and others only brachiopod-rich concentrations (Mafra, Butiá quarry)? C- Are there differences in age and paleoecology among those assemblages? In this project, we will address the systematics, paleoecology and stratigraphy of those brachiopod-rich assemblages of the upper portion of the Itararé Group, Mafra and Taciba formations (Asselian), as a crucial step to better constrain the age, paleobiogeographical affinities and biocorrelations of those marine invertebrate assemblages that were tied to de demisse of the the late Paleozoic glaciation in Paraná Basin, trying to answer the issues highlighted above. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CESAR TABOADA, ARTURO; NEVES, JACQUELINE PEIXOTO; WEINSCHUTZ, LUIZ CARLOS; ALEJANDRA PAGANI, MARIA; SIMOES, MARCELLO GUIMARAES. Eurydesma-Lyonia fauna (Early Permian) from the Itarare group, Parana Basin (Brazil): A paleobiogeographic W-E trans-Gondwanan marine connection. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, v. 449, p. 431-454, . (13/25317-7, 14/09149-0, 09/17555-0)
SIMOES, MARCELLO GUIMARAES; NEVES, JACQUELINE PEIXOTO; TABOADA, ARTURO CESAR; PAGANI, MARIA ALEJANDRA; VAREJAO, FILIPE GIOVANINI; ASSINE, MARIO LUIS. Macroinvertebrates of the Capivari marine bed, late Paleozoic glacial Itarare Group, northeast Parana Basin, Brazil: Paleoenvironmental and paleogeographic implications. Journal of South American Earth Sciences, v. 98, . (14/09149-0, 13/25317-7)

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