Reconstruction of sedimentary environments in the Djadokhta Formation, Udyn Sayr, Gobi desert, Mongolia

Authors

  • Mototaka Saneyoshi Faculty of Biosphere – Geosphere Science, Okayama University of Science, Ridai-cho, Kita-ku, Okayama, 700-0005, Japan
  • Hitomi Asai Graduate school of Biosphere – Geosphere Science, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama, 700 0005, Japan
  • Buuvei Mainbayar Institute of Paleontology, Mongolian Academy of Sciences, P.O.B 46/650, S. Danzan Street 3/1, 4th khoroo, Chingeltei district, Ulaanbaatar – 15160, Mongolia
  • Tomohiro Tanabe Graduate school of Biosphere – Geosphere Science, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama, 700-0005, Japan
  • Shinobu Ishigaki Faculty of Biosphere – Geosphere Science, Okayama Universi ty of Science, Ridai-cho, Kita-ku, Okayama, 700-0005, Japan
  • Khishigjav Tsogtbaatar Institute of Paleontology, Mongolian Academy of Sciences, P.O.B 46/650, S. Danzan Street 3/1, 4th khoroo, Chingeltei dis trict, Ulaanbaatar – 15160, Mongolia

DOI:

https://doi.org/10.5564/mjp.v4i1.4585

Keywords:

Paleoenvironments, Djadokhta Formation, Udyn Sayr, Mongolia

Abstract

The Djadokhta Formation in Udyn Sayr in the southwestern part of the Gobi desert, Mongolia, is described based on sedimentary facies. The succession is composed of eolian and fluvial facies, with interfingering stratigraphic intervals. The fluvial association is indicated by the presence of caliche, suggesting seasonally wet and dry conditions. The eolian deposits contain the most fossils of vertebrates such as Protoceratopsidae, reptiles and Mesozoic mammals, which form a rich part of the succession in the fossil locality. This suggests that eolian environments were the main habitat for vertebrates during the sedimentation period.

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Author Biography

Hitomi Asai, Graduate school of Biosphere – Geosphere Science, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama, 700 0005, Japan

Wesco Inc., 2-5-35 Shimadahonda-cho, Kita-ku, Okayama, 700-0033, Japan

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Published

2021-12-27

How to Cite

Saneyoshi, M., Asai, H., Mainbayar, B., Tanabe, T., Ishigaki, S., & Tsogtbaatar, K. (2021). Reconstruction of sedimentary environments in the Djadokhta Formation, Udyn Sayr, Gobi desert, Mongolia. Mongolian Journal of Paleontology, 4(1), 23–29. https://doi.org/10.5564/mjp.v4i1.4585

Issue

Vol. 4 No. 1 (2021)

Section

Articles

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Copyright (c) 2021 Mototaka Saneyoshi, Hitomi Asai, Buuvei Mainbayar, Tomohiro Tanabe, Shinobu Ishigaki, Khishigjav Tsogtbaatar

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