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The Acretretoid Type of Shell Microstructure in the Genus Kasagittella (Order Lingulida) from the Upper Devonian of the Volga-Urals Region

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Abstract

The columnar-lamellar microstructure of Kasagittella sp. (order Lingulida, family Obolidae King, 1846) from the Upper Devonian (Frasnian) of the Ust-Cheremshan structural-facies zone is described for the first time. This microstructure is more typical of the order Acrotretida.

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ACKNOWLEDGMENTS

The authors express their sincere gratitude to L.I. Kononova and G.T. Ushatinskaya for valuable advice, constant consultations and discussion of the main provisions of the article.

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Authors and Affiliations

  1. Lomonosov Moscow State University, 119991, Moscow, Russia

    T. N. Smirnova

  2. Borissiak Paleontological Institute, Russian Academy of Sciences, 117647, Moscow, Russia

    E. A. Zhegallo

Authors
  1. T. N. Smirnova
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  2. E. A. Zhegallo
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Correspondence to T. N. Smirnova or E. A. Zhegallo.

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The authors declare that they have no conflicts of interest.

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Translated by S. Nikolaeva

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Smirnova, T.N., Zhegallo, E.A. The Acretretoid Type of Shell Microstructure in the Genus Kasagittella (Order Lingulida) from the Upper Devonian of the Volga-Urals Region. Paleontol. J. 56, 47–51 (2022). https://doi.org/10.1134/S0031030122010129

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  • DOI: https://doi.org/10.1134/S0031030122010129

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