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

    • Catarina Barbosa
    • Pedro Correia
    • João Muchagata
    • Rúben Domingos
    • Artur A. Sá


    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.

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

    References

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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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    Catarina Barbosa
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    Pedro Correia
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    DOI: https://doi.org/10.37819/biosis.003.01.0162

    Published: 2022-03-23

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