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First Record of Stegosaur (Ornithischia, Dinosauria) from the Aptian–Albian of Mongolia

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Abstract

The first Mongolian stegosaur, Mongolostegus exspectabilis gen. et sp. nov., Stegosauridae (Ornithischia), represented by a series of anterior caudal vertebrae and bones of the pelvic girdle is described. The vertebral structure and massiveness and morphological features of pubic bones provide a unique combination of features, allowing recognition of diagnostic characters. The new taxon comes from the Aptian–Albian deposits of the Khamryn-Us locality (Mongolia) and belongs to the latest Stegosauridae (Ornithschia).

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ACKNOWLEDGMENTS

We are grateful to A.O. Averianov (Zoological institute of the Russian Academy of Science, Saint Petersburg), S.M. Kurzanov (PIN), V.S. Tereschenko (PIN), P. Dodson (University of Pennsylvania School of Veterinary Medicine, United States), and K. Carpenter (Utah State University Eastern, Prehistoric Museum, United States) for help and valuable discussions and to S.V. Bagirov (PIN) for producing photographs for this paper.

This study was supported by the Russian Foundation for Basic Research (project no. 16-05-00408).

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

    T. A. Tumanova & V. R. Alifanov

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  1. T. A. Tumanova
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  2. V. R. Alifanov
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Correspondence to T. A. Tumanova or V. R. Alifanov.

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Translated by G. Rautian

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Tumanova, T.A., Alifanov, V.R. First Record of Stegosaur (Ornithischia, Dinosauria) from the Aptian–Albian of Mongolia. Paleontol. J. 52, 1771–1779 (2018). https://doi.org/10.1134/S0031030118140186

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  • DOI: https://doi.org/10.1134/S0031030118140186

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