Phyllotheca douroensis sp. nov., a new equisetalean fossil-species from the Douro Carboniferous Basin (Upper Pennsylvanian; NW Portugal): palaeobiogeographical, systematic and evolutionary implications

Authors

  • Catarina Barbosa Department of Geosciences, University of Évora, Largo dos Colegiais 2, 7000-645 Évora, Portugal
  • Pedro Correia Geosciences Center, University of Coimbra, Largo Marquês de Pombal, 3000-272 Coimbra, Portugal
  • João Muchagata Museu de História Natural e da Ciência da Universidade do Porto (MHNC-UP), Praça Gomes Teixeira, 4099-002 Porto, Portugal
  • Rúben Domingos GEOBIOTEC, Earth Sciences Department, NOVA School of Science and Technology, Campus de Caparica, P-2829 516 Caparica, Portugal
  • Artur A. Sá Department of Geology, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal

DOI:

https://doi.org/10.37819/biosis.003.01.0162

Keywords:

phytogeographic provinces (Floral Realms), convergent evolution, Phyllotheca, Equisetales, Douro Carboniferous Basin, lower Gzhelian (Upper Pennsylvanian)

Abstract

The first occurrence of the fossil-genus Phyllotheca (Equisetales) from the Carboniferous of Portugal is documented and its palaeobiogeographical, systematic and evolutionary significance is assessed. In this paper, we described this new equisetalean fossil as new species, Phyllotheca douroensis sp. nov., found in the Douro Carboniferous Basin (lower Stephanian C/lower Gzhelian, Upper Pennsylvanian), in northwestern Portugal. P. douroensis sp. nov. represents a convergent form of Phyllothecaceae sensu lato (comprises the Angaran Tchernoviaceae and the Gondwanan Gondwanostachyaceae) with closer affinities to Euramerican floral province.

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Author Biography

  • Catarina Barbosa Department of Geosciences, University of Évora, Largo dos Colegiais 2, 7000-645 Évora, Portugal

  • Pedro Correia Geosciences Center, University of Coimbra, Largo Marquês de Pombal, 3000-272 Coimbra, Portugal

  • João Muchagata Museu de História Natural e da Ciência da Universidade do Porto (MHNC-UP), Praça Gomes Teixeira, 4099-002 Porto, Portugal

  • Rúben Domingos GEOBIOTEC, Earth Sciences Department, NOVA School of Science and Technology, Campus de Caparica, P-2829 516 Caparica, Portugal

  • Artur A. Sá Department of Geology, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal

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    How to Cite

    Barbosa, C. ., Correia, P., Muchagata, J., Domingos, R., & Sá, A. A. . (2022). Phyllotheca douroensis sp. nov., a new equisetalean fossil-species from the Douro Carboniferous Basin (Upper Pennsylvanian; NW Portugal): palaeobiogeographical, systematic and evolutionary implications. Biosis: Biological Systems, 3(1), e001. https://doi.org/10.37819/biosis.003.01.0162

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    Published

    2022-03-23

    How to Cite

    Barbosa, C. ., Correia, P., Muchagata, J., Domingos, R., & Sá, A. A. . (2022). Phyllotheca douroensis sp. nov., a new equisetalean fossil-species from the Douro Carboniferous Basin (Upper Pennsylvanian; NW Portugal): palaeobiogeographical, systematic and evolutionary implications. Biosis: Biological Systems, 3(1), e001. https://doi.org/10.37819/biosis.003.01.0162