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Teixeiria lusitanica, a new fossil flower from the Early Cretaceous of Portugal with affinities to Ranunculales

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Abstract

A charcoalified fossil flower bud of a new genus and species (Teixeiria lusitanica) is described from the Early Cretaceous of Portugal. The flower is actinomorphic and unisexually male. At the base of the bud there are several bracts of different sizes, which are followed by sepal-like and petal-like tepals. Bracts and perianth organs seem to be arranged spirally and to exhibit transitions between different organ categories. The androecium has numerous stamens in two sizes, but with unclear arrangement. Pollen is small and tricolpate with a perforate tectum and a densely columellate infratectal layer. No carpels or remains of carpels could be observed on the floral axis. Teixeiria lusitanica shows most affinities to members of Ranunculales. There are also some similarities with Berberidopsis (Berberidopsidaceae, Berberidopsidales) and members of the Saxifragales (Hamamelidaceae and Daphniphyllaceae).

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Authors and Affiliations

  1. Department of Palaeobotany, Swedish Museum of Natural History, SE-10405, Stockholm, Sweden

    M. von Balthazar & E. M. Friis

  2. Department of Geology, University of Aarhus, Aarhus-C, DK-8000, Århus, Denmark

    K. Raunsgaard Pedersen

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  1. M. von Balthazar
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  2. K. Raunsgaard Pedersen
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  3. E. M. Friis
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Balthazar, M.v., Pedersen, K.R. & Friis, E.M. Teixeiria lusitanica, a new fossil flower from the Early Cretaceous of Portugal with affinities to Ranunculales. Plant Syst. Evol. 255, 55–75 (2005). https://doi.org/10.1007/s00606-005-0347-z

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  • DOI: https://doi.org/10.1007/s00606-005-0347-z

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