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Paleobiogeography and migratory routes of devonian paleoinvertebrates from Brazilian Intracratonic Basins of Paraná, Parecis, Parnaíba and Alto Tapajós

Grant number: 20/12409-4
Support type:Regular Research Grants
Duration: November 01, 2021 - October 31, 2023
Field of knowledge:Biological Sciences - Zoology - Paleozoology
Principal researcher:Renato Pirani Ghilardi
Grantee:Renato Pirani Ghilardi
Home Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil
Assoc. researchers: Daniel Sedorko ; Rodrigo Scalise Horodyski ; Sabrina Coelho Rodrigues ; Sandro Marcelo Scheffler ; Silane Aparecida Ferreira da Silva Caminha

Abstract

The macro and micro fauna of invertebrates present in the intracratonic basins of Paraná and Parnaíba are relatively well studied and documented in the literature in general, on the other hand, in the Parecis and Alto Tapajós basins, paleofaunistic studies are extremely poor. Recent work shows that during the end of the Eifelian to the Frasnian (Middle-Upper Devonian), from global climatic changes and sea level variations, possible communications occurred between Brazilian paleozoic basins, facilitating migratory routes of at least crinoids and trilobites in several ways. The present research is based on the hypothesis that dispersion routes existed between the mentioned basins, which facilitate biotic exchanges between the marine paleoinvertebrates of those basins. To prove these routes, the fossils collected on the northwestern edge of the Paraná Basin, southeast of the Parecis Basin, southeast of the Parnaíba Basin, and the first paleofaunistic works in the Alto Tapajós Basin, will undergo taxonomic analyzes in order to identify correctly the organisms, finding paleobiogeographic patterns between these organisms and the faunas of the studied basins and with other basins of Gondwana. (AU)

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