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An Upper Molar of a Docodontan (Docodonta, Mammaliaformes) from the Lower Cretaceous of Western Siberia

  • PALEONTOLOGY
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Abstract

According to the degree of development of the main cusps and the presence of a small lingual part, the upper molar of a docodontan from the Bol’shoi Kemchug 4 locality (Ilek Formation, Lower Cretaceous) in the Krasnoyarsk Territory corresponds to M1 of Agilodocodon scansorius Meng et al., 2015 from the Middle Jurassic of China. The described tooth may belong to Sibirotherium rossicum Maschenko et al., 2003 known from more complete remains (without M1) from the Ilek Formation of the Shestakovo 1 locality (Kemerovo Region), which could have four upper molars similar in structure to those of Agilodocodon.

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ACKNOWLEDGMENTS

We are grateful to R. Schellhorn (Rhenish Friedrich Wilhelm University of Bonn, Germany) for computed microtomography imaging and creation of a three-dimensional model of the studied specimen, as well as to P.G. Saburov and E.A. Boitsova (St. Petersburg State University) for assistance in expedition works in 2015.

Funding

This work was supported by the Russian Science Foundation (project no. 19-14-00020-P). This study was supported in part by subsidies allocated under a State Assignment of the Ministry of Science and Higher Education of the Russian Federation to the Zoological Institute, Russian Academy of Sciences (project no. 122031100282-2), and Tomsk State University (project no. 0721-2020-0041).

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Authors and Affiliations

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

    A. V. Lopatin

  2. Zoological Institute, Russian Academy of Sciences, 199034, St. Petersburg, Russia

    A. O. Averianov

  3. Tomsk State University, 634050, Tomsk, Russia

    S. V. Ivantsov

  4. St. Petersburg State University, 199034, St. Petersburg, Russia

    I. T. Kuzmin & P. P. Skutschas

Authors
  1. A. V. Lopatin
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  2. A. O. Averianov
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  3. S. V. Ivantsov
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  4. I. T. Kuzmin
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  5. P. P. Skutschas
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Corresponding author

Correspondence to A. V. Lopatin.

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Translated by E. Maslennikova

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Lopatin, A.V., Averianov, A.O., Ivantsov, S.V. et al. An Upper Molar of a Docodontan (Docodonta, Mammaliaformes) from the Lower Cretaceous of Western Siberia. Dokl. Earth Sc. 512, 871–873 (2023). https://doi.org/10.1134/S1028334X23601128

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  • DOI: https://doi.org/10.1134/S1028334X23601128

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