Early Triassic conchostracans from the Tiryakh-Kobyume section (southern Verkhoyansk region, Republic of Sakha (Yakutia))

V.V. Zharinova a, F. Scholze b, V.I. Davydov c, R.V. Kutygin d

aKazan Federal University, Kazan, 420008 Russia

bFriedrich Schiller University Jena, Jena, 07743 Germany

cBoise State University, Boise, 1910 USA

dDiamond and Precious Metal Geology Institute, Siberian Branch, Russian Academy of Sciences, Yakutsk, 677007 Russia

Recieved May 15, 2020

Full text PDF
DOI: 10.26907/2542-064X.2020.2.244-252

For citation: Zharinova V.V., Scholze F., Davydov V.I., Kutygin R.V. Early Triassic conchostracans from the Tiryakh-Kobyume section (southern Verkhoyansk region, Republic of Sakha (Yakutia)). Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki, 2020, vol. 162, no. 2, pp. 244–252. doi: 10.26907/2542-064X.2020.2.244-252.

Abstract

Conchostracans (Crustacea) from the Induan deposits of the Tiryakh-Kobyume section (southern Verkhoyansk region) were studied. We identified the following seven conchostracan species belonging to five genera: Pseudestheria Raymond, 1946; Euestheria Deperet et Mezeran, 1912; Sphaerestheria Novojilov, 1954; Lioestheria Deperet et Mezeran, 1912; Wetlugites Novojilov, 1958. Most of the previously identified species in the Tiryakh-Kobyume region (“Pseudestheria sibirica”, “Ps. tumaryana”, “Ps. kashirtzevi”, and “Sphaeres­theria aldanensis”) were described in the middle of the 20th century from the basal Triassic in the western Verkhoyansk region (Balbuk section). Revision of these species with the use of modern methods of conchostracan classification is needed.

Keywords: conchostracans, Early Triassic, southern Verkhoyansk region

Acknowledgments. We thank A.N. Kilyasov and I.V. Budnikov for their assistance during the sampling procedures and description of the section. The study was supported by the subsidy allocated to Kazan Federal University for the state assignment no. 671-2020-0049 in the sphere of scientific activities. The conchostracan study was funded by the Russian Science Foundation (project no. 19-17-00178).

References

  1. Kozur H.W., Weems R.E. The biostratigraphic importance of conchostracans in the continental Triassic of the northern hemisphere. Geol. Soc., London, Spec. Publ., 2010, vol. 334, no. 1, pp. 315–417. doi: 10.1144/SP334.13.
  2. Schneider J.W., Scholze, F. Late Pennsylvanian–Early Triassic conchostracan biostratigraphy: A preliminary approach. Geol. Soc., London, Spec. Publ., 2018, vol. 450, no. 1, pp. 365–386. doi: 10.1144/SP450.6.
  3. Schneider J.W., Lucas S.G., Scholze F., Voigt S., Marchetti L., Klein H., Opluštil S., Werneburg R., Golubev V.K., Barrick J.E., Nemyrovska T., Ronchi A., Day M.O., Silantiev V.V., Rößler R., Saber H., Linnemann U., Zharinova V., Shen S.-Z. Late Paleozoic-early Mesozoic continental biostratigraphy – links to the Standard Global Chronostratigraphic Scale. Palaeoworld, 2020, vol. 29, no. 2, pp. 186–238. doi: 10.1016/j.palwor.2019.09.001.
  4. Domokhotov S.V. Induan stage and Otoceras zone of the eastern Verkhoyansk region. Mater. Geol. Polezn. Iskop. Yakutsk. ASSR, 1960, no. I, pp. 111–120. (In Russian)
  5. Domokhotov S.V. About the Tatarian stage of the eastern Verkhoyansk region. Mater. Geol. Polezn. Iskop. Sev.-Vostoka SSSR, 1960, vol. 14, pp. 27–33. (In Russian)
  6. Novojilov N.I. New Permian and Triassic Conchostraca from Southern Byelorussia, Cis-Urals region, and Yakutia. Osn. Paleontol., 1959, no. 3, pp. 84–103. (In Russian)
  7. Abramov B.S. Stratigrafiya verhnepaleozoiskikh otlozhenii Yuzhnogo Verkhoyan’ya [Stratigraphy of the Upper Paleozoic Sediments in the Southern Verkhoyansk Region]. Novosibirsk, Nauka, 1974. 96 p. (In Russian)
  8. Kutygin R.V., Budnikov I.V., Biakov A.S., Davydov V.I., Kilyasov A.N., Silantiev V.V. First findings of Otoceras (Ceratitida) in the Kobyuma zone of the southern Verkhoyansk region, Northeastern Russia. Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki, 2019, vol. 161, no. 4, pp. 550–570. doi: 10.26907/2542-064X.2019.4.550-570. (In Russian)
  9. Scholze F., Schneider J.W. Improved methodology of ‘conchostracan’ (Crustacea: Branchio­poda) classification for biostratigraphy. Newsl. Stratigr., 2015, vol. 48, no. 3, pp. 287–298. doi: 10.1127/nos/2015/0065.
  10. Goretzki J. Biostratigraphy of conchostracans: A key for the interregional correlations of the continental Palaeozoic and Mesozoic – Computer-aided pattern analysis and shape statistics to classify groups being poor in characteristics. Ph.D. Thesis. Freiberg, Tech. Univ. Bergakad. Freiberg, 2003. 243 p.
  11. Molin V.А., Novojilov N.I. Dvustvorchatye listonogie Permi i Triasa Severa SSSR [Permian and Triassic Bivalved Phyllopods from the North of the USSR]. Nauka, 1965. 116 p. (In Russian)
  12. Novojilov N.I. Recueil D’Articles sur les Phyllopodes Conchostraces. Moscow, Nauka, 1950. 128 p. (In French)
  13. Zharinova V.V., Silantiev V.V. About Early Triassic conchostracans of Pechora Syneclise. Paleostrat-2018. Moskva, 29-31 yanvarya 2018 g. [Paleostrat-2018. Moscow, January 29–31, 2018]. Moscow, 2018, pp. 30–31. (In Russian)
  14. Davydov V.I., Zharinova V.V., Silantiev V.V. Late Permian and Early Triassic conchostracans from the Babii Kamen section (Kuznetsk coal basin). Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki, 2019, vol. 161, no. 2, pp. 339–347. doi: 10.26907/2542-064X.2019.2.339–347.
  15. Lutkevich Е.М. Triassic Estheriae from the Upper Tungusskaya Series. Tr. Arkt. Inst., 1938, pp. 155–164. (In Russian)
  16. Scholze F., Shen S.-Z., Backer M., Wei H.-B., Hübner M., Cui Y.-Y., Feng Z., Schneider J.W. Reinvestigation of conchostracans  (Crustacea: Branchiopoda)  from  the  Permian–Triassic transition in Southwest China. Palaeoworld, 2020, vol. 29, no. 2, pp. 368–390. doi: 10.1016/j.palwor.2019.04.007.

 

The content is available under the license Creative Commons Attribution 4.0 License.