Similarities of the K/Pc dinoflagellate cyst associations between South Atlantic and Indian proto-oceans

Authors

  • Júnior Bispo de Menezes Universidade Guarulhos, Programa de Pós-graduação em Análise Geoambiental, Guarulhos. Universidade de São Paulo – USP, Instituto de Geociências, IGc-GSA, Laboratório de Paleobotânica e Palinologia, Programa de Pós-graduação em Geoquímica e Geotectônica, São Paulo.
  • Maria Judite Garcia Universidade de São Paulo – USP, Instituto de Geociências, IGc-GSA, Laboratório de Paleobotânica e Palinologia, Programa de Pós-graduação em Geoquímica e Geotectônica, São Paulo.
  • Eduardo Premaor Universidade Federal do Rio Grande do Sul – UFRGS, Departamento de Paleontologia e Estratigrafia, Laboratório de Palinologia Marleni Marques Toigo, Porto Alegre.
  • Paulo Eduardo De Oliveira Universidade de São Paulo – USP, Instituto de Geociências, IGc-GSA, Laboratório de Paleobotânica e Palinologia, Programa de Pós-graduação em Geoquímica e Geotectônica, São Paulo. The Field Museum of Natural History, Department of Botany, Chicago, IL, USA.
  • Mitsuru Arai Universidade Estadual Paulista – UNESP, Rio Claro.
  • Mary Elizabeth Cerruti Bernardes-de-Oliveira Universidade de São Paulo – USP, Instituto de Geociências, IGc-GSA, Laboratório de Paleobotânica e Palinologia, Programa de Pós-graduação em Geoquímica e Geotectônica, São Paulo.
  • Pauline Sabina Kavali Universidade de São Paulo – USP, Instituto de Geociências, IGc-GSA, Laboratório de Paleobotânica e Palinologia, Programa de Pós-graduação em Geoquímica e Geotectônica, São Paulo. Birbal Sahni Institute of Paleosciences, Uttar Pradesh.
  • Mahesh Shivanna Universidade Federal do Rio Grande do Sul – UFRGS, Departamento de Paleontologia e Estratigrafia, Laboratório de Palinologia Marleni Marques Toigo, Porto Alegre.

DOI:

https://doi.org/10.11606/issn.2316-9095.v16i4p135-149

Keywords:

Cretaceous, Paleocene, Dinoflagellate cysts, Gondwanan paleobiogeographic distribution.

Abstract

In this contribution we present the composition of the Late Cretaceous / Paleocene dinoflagellate cyst assemblages found in the Pelotas Basin, southern Brazil in order to provide a first paleobiogeographical comparison between this location, India and other former Gondwana continents: South America (Argentina and Uruguay), Africa (Nigeria and Western Ghana), Antarctica, Australia, and New Zealand. A total of 13 taxa, some endemic and other cosmopolitan were identified. The paleoenvironment of the Gondwana former members basins, as previously presented and attested by the dinoflagellate cysts are marginal marine nearshore, varying from neritic to shallow neritic and lagoonal or coastal swamps, which permitted the deposition of sediments in anoxic marine conditions. The present analysis of similarity between K/Pc dinoflagellate cyst associations allowed the establishment of paleobiogeographic distribution.

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Published

2016-12-16

Issue

Vol. 16 No. 4 (2016)

Section

Articles

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How to Cite

Menezes, J. B. de, Garcia, M. J., Premaor, E., Oliveira, P. E. D., Arai, M., Bernardes-de-Oliveira, M. E. C., Kavali, P. S., & Shivanna, M. (2016). Similarities of the K/Pc dinoflagellate cyst associations between South Atlantic and Indian proto-oceans. Geologia USP. Série Científica, 16(4), 135-149. https://doi.org/10.11606/issn.2316-9095.v16i4p135-149