Инд. авторы:	Korovnikov I.V., Shabanov Y.Y.
Заглавие:	Trilobites and biostratigraphy of the kuonamka formation, northern siberian platform (olenek river)
Библ. ссылка:	Korovnikov I.V., Shabanov Y.Y. Trilobites and biostratigraphy of the kuonamka formation, northern siberian platform (olenek river) // Russian Geology and Geophysics. - 2016. - Vol.57. - Iss. 4. - P.562-573. - ISSN 1068-7971. - EISSN 1878-030X.
Внешние системы:	DOI: 10.1016/j.rgg.2015.05.011; РИНЦ: 27015360;
Реферат:	eng: A study of triobite distribution allowed a biostratigraphic subdivision of the Kuonamka Formation section exposed in the middle reaches of the Olenek River (18 km downstream of the village of Olenek). Through detailed description of the section, a biostratigraphic subdivision down to the level of biozones and faunal beds was performed. These are beds with Calodiscus-Triangulaspis annio, Delgadella ultima-Bergeroniellus expansus Zone, Lermontovia dzevanovskii-Neopagetina orbiculata Zone, Anabaraspis Zone, Cheiruroides arcticus- Pagetia horrida Zone, Kounamkites Zone, Triplagnostus gibbus Zone, and beds with Tomagnostus fissus-Paradoxides sacheri. These biostratigraphic subdivisions were correlated with regional zones of the Siberian Platform. The study also provides analysis of trilobite assemblages from the Lower/Middle Cambrian boundary interval, which was identified in the studied section and other previously described sections (Nekekit, Molodo, Boroulakh Rivers). In the studied section, the base of the Middle Cambrian is defined by the FAD of Cheiruroides arcticus, i.e., at the base of the Cheiruroides arcticus-Pagetia horrida Zone. This level correlates with a presumed lower boundary of Stage 5 of a new International Stratigraphic Chart for the Cambrian System.
Ключевые слова:	trilobites; Siberian platform; Kuonamka Formation; biostratigraphy;
Издано:	2016
Физ. характеристика:	с.562-573
Цитирование:	1. Bakhturov S.F., Evtushenko V.M., Pereladov V.S. The Kuonamka Bituminous Carbonate-Shaly Formation [in Russian] (Trans. IGiG SO AN SSSR, Issue 671) 1988, Nauka, Novosibirsk. 2. Blaker M.R., Peel J.S. Lower Cambrian trilobites from North Greenland. Meddelelser om Gronland, Geosience 1997, 35. 3. Decisions of All-Russia Stratigraphic Meeting on the Precambrian, Paleozoic, and Quaternary of Central Siberia [in Russian], 1983. SNIIGGiMS, Novosibirsk. 4. Filippov, Yu.F., Saraev, S.V., Korovnikov, I.V., 2014. The Cambrian sediments of the Cis-Yenisei basin (West Siberia): Stratigraphy and correlation. Russian Geology and Geophysics (Geologiya i Geofizika) 55 (5-6), 704-715 (891-905). 5. Fletcher T.P. Arthrococephalus chauveaui Bergeron, a key species for the correlation of a global stage boundary. Cambrian system of south China. Palaeoworld 2001, 13:257-260. 6. Fletcher T.P. Ovatoryctocara granulata: The key to a global Cambrian stage boundary and the correlation of the olenellid, redlichiid and paradoxidid realms. Paleontology 2003, 70:73-102. 7. Geyer G., Shergold J. The quest for internationally recognized divisions of Cambrian time. Episodes 2000, 23(3):188-195. 8. Korovnikov I.V., Sennikov N.V., Danelian T., Obut O.T., Pouille L. The biostratigraphic and palaeoenvironmental significance of Lower Cambrian (Botomian) trilobites from the Ak-Kaya section of the Altai Mountains (southern Siberia, Russia). Annales de Paleontology 2013, 99:79-89. 9. McCollum L.B., Sundberg F.A. The use of Oryctocephalus indicus as a "Lower-Middle" Cambrian boundary GSSP. Acta Micropalaeontological Sinica 2005, 22:113-114. 10. Pelman, Yu.L., 1982. Paleobiocenotic faunal groups in Middle Cambrian domanik deposits of the Kuonamka Formation (Siberian Platform, Muna River, in: Environment and Life in the Geological Past. Paleolandscapes and Biofacies [in Russian]. Nauka, Novosibirsk, pp. 60-74. 11. Resolutions of Interdepartmental Stratigraphic Committee and Its Standing Commissions [in Russian], 2008. Zhamoida, A.I., Petrov, O.V. (Eds.), Issue 38. VSEGEI, St. Petersburg. 12. Repina, L.N., 1972. Trilobites from the Taryn horizon in Lower Cambrian sections on the Sukharikha River (Igarka region), in: Problems of Lower Cambrian Biostratigraphy and Paleontology of Siberia[in Russian]. Nauka, Moscow, pp. 184-216. 13. Savitskii, V.E., Evtushenko, V.M., Egorova, L.I., Kontorovich, A.E., Shabanov, Yu.Ya., 1972. The Cambrian of the Siberian Platform [in Russian]. Nedra, Moscow. 14. Shabanov, Yu.Ya., Korovnikov, I.V., Pereladov, V.S., Pak, K.L., Fefelov, A.F., 2008. Kuonamka Formation on Molodo River-a candidate for global stratotype of the lower boundary of the Middle Cambrian (East of the Siberian Platform), in: Cambrian Sections of the Siberian Platform- Candidates for Stratotypes of Subdivisions of the International Stratigraphical Scheme (Stratigraphy and Palaeontology) [in Russian]. SO RAN, Novosibirsk, pp. 59-70. 15. Shergold J.H. Oryctocephalidae (Trilobita: Middle Cambrian of Australia) 1969, Canberra. 16. Staroseltsev, V.S., Shishkin, B.B., 2014. Environmental conditions of accumulation of Cambrian carbonaceous rocks in the Siberian Platform. Russian Geology and Geophysics (Geologiya i Geofizika) 55 (5-6), 619-628 (787-796). 17. Sundberg F.A., McCollum L.B. Trilobites of the Lower Middle Cambrian Poliella delicate biozone (new) of Southeastern Nevada. J. Paleontol. 2003, 77(2):331-359. 18. Yuan J.L., Zhao Y.L., Li Y., Huang Y.Z. Trilobite fauna of the Kaili Formation (uppermost Lower Cambrian o lower Middle Cambrian) from southeastern Guizhou 2002, South China, National Natural Science Foundation of China. 19. Zhao Y., Peng J., Yuan J., Guo Q., Yai T., Yin L., Parsley L.R., Yang Y., Yang X., Zhang P. The Kaili Formation and Kaili Biota at the Wuliu, Zengjiayn section of Guizhou Province, China and proposed Global Standart Stratotype, section and Point (GSSP) of the unnamed Cambrian Series 3, Stage 5. J. Guizhou University 2012, 29(Suppl. 1):108-124.