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A New Species of Marskea Florin (Pinopsida) from the Middle Jurassic of the Irkutsk Coal Basin (East Siberia)

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Abstract

The study of conifer twigs from the Middle Jurassic deposits of the Irkutsk Coal Basin, previously described as Sequoia and Taxocladus, shows their morphology and epidermal characters to be similar to those of Marskea leaves. A new species Marskea heeriana N. Nosova et Kiritch. is described. A new combination, Marskea latifolia (Kiritch.) N. Nosova, comb. nov., is proposed for leafy twigs from the Early Cretaceous of the Lena Basin, originally described as Florinia latifolia Kiritch.

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ACKNOWLEDGMENTS

The study was carried out using the equipment of the Core Facility Center “Cell and Molecular Technologies in Plant Science” at the Komarov Botanical Institute of the Russian Academy of Sciences (St. Petersburg) and was supported by the Russian Foundation for Basic Research, project no. 15-05-00024.

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Authors and Affiliations

  1. Komarov Botanical Institute, Russian Academy of Sciences, 197376, St. Petersburg, Russia

    N. V. Nosova

  2. All-Russia Petroleum Research Exploration Institute, 192102, St. Petersburg, Russia

    A. I. Kiritchkova

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  1. N. V. Nosova
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  2. A. I. Kiritchkova
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Correspondence to N. V. Nosova.

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Translated by S. Nikolaeva

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Nosova, N.V., Kiritchkova, A.I. A New Species of Marskea Florin (Pinopsida) from the Middle Jurassic of the Irkutsk Coal Basin (East Siberia). Paleontol. J. 52, 574–581 (2018). https://doi.org/10.1134/S0031030118050106

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