Abstract
Borehole Nizhny Imbak 219 is situated in the northwestern Siberian Platform. Paleontological material comes from the clayey–limestone series at a depth of 2333.3–2314.3 m referred to the Ovatoryctocara and Kounamkites zones of the Middle Cambrian Amgan Stage and from the overlying limestone series at a depth of 2264.1–2244.0 m referred to the upper part of the Kounamkites Zone and an unnamed zone of the Amgan Stage and also to the Solenopleura patula and Dorypyge olenekensis–Corynexochus perforatus zones of the Middle Cambrian Mayan Stage. The questions of the traditional Lower–Middle Cambrian boundary and the role of Siberian sections in the construction of the International Chronostratigraphic Chart are considered. The trilobites collected are described.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Angelin, N.P., Palaeontologia Scandinavica: Pars I. Crustacea Formationis Transitionis, Palaeontol. Suecica, 1851, no. 1, pp. 1–24; Palaeontol. Scand., 1854, no. 2, pp. i-ix, 21-92; [republished in combined and revised form] Stockholm: Norstedt et Soner., 1878, Lindstrom, G., Ed., pp. x, 1–96.
Astashkin, V.A., Pegel, T.V., Shabanov, Yu.Ya., Sukhov, S.S., Sundukov, V.M., Repina, L.N., Rozanov, A.Yu., and Zhuravlev, A.Yu., The Cambrian System of the Siberian Platform: Correlation chart and explanatory notes, Int. Union Geol. Sci. Publ., 1991, no. 27, pp. 1–133.
Barrande, J., Systeme Silurien du Centre de la Bohême: I. Recherches Paléontologiques, vol. 1: Crustacés: Trilobites, Prague–Paris, 1852.
Beyrich, E., Über einige böhmischer Trilobiten, Berlin, 1845.
Bognibova, R.T., Middle Cambrian trilobites from the area of Dolgii Mys Mountain (Batenevsky Ridge), Tr. Sib. Nauchno-Issled. Inst. Geol. Geofiz. Mineral Syr., 1965, vol. 34 (Data on the Geology, Geophysics, and Minerals of Siberia: Part 1), pp. 59–74.
Bognibova, R.T., Koptev, I.I., Mikhailova, L.M., Poletaeva, O.K., Romanenko, E.V., Romanenko, M.F. Semashko, A.K., Tomashpol’skaya, V.D., Fedyanina, E.S., and Chernysheva, N.E., Trilobites of the Amgan Age of the Altai–Sayany Region, in Amginskii yarus Altae-Sayanskoi oblasti (Amgan Stage of the Altai–Sayany Region), Novosibirsk: Zap.-Sib. Knizh. Izd., 1971, pp. 82–263.
Dalmatov, B.A. and Vetluzhskikh, L.I., Phylum Arthropoda, in Atlas iskopaemoi fauny i flory paleozoya Respubliki Buryatiya (Atlas of the Fossil Fauna and Flora of the Paleozoic of the Republic Buryatiya), Koren’, T.N., Ed., Ulan-Ude: Buryat. Nauchn. Tsen. Sib. Otd. Ross. Akad. Nauk, 2003, pp. 49–87.
Dames, W., Cambrische Trilobiten von Liau-tung, in F. von Richthofen, China, vol.4. Palaeontologischer Teil, Berlin, 1883, pp. 23–27.
Egorova, L.I., Some trilobites from the Lower and Middle Cambrian of the Siberian Platform, Paleontol. Zh., 1967, no. 1, pp. 68–78.
Egorova, L.I., Ivshin, N.K., Pokrovskaya, N.V., Poletaeva, O.K., Repina, L.N., Rozova, A.V., Romanenko, E.V., Sivov, A.G., Tomashpol’skaya, V.D., Fedyanina, E.S., and Chernysheva, N.E., Cambrian System: Description of index taxa: Phylum Arthropoda, in Biostratigrafiya paleozoya Sayano-Altaiskoi oblasti (Biostratigraphy of the Paleozoic of the Sayany–Altai Region), vol. 1: Nizhnii paleozoi (Lower Paleozoic), Novosibirsk: Sib. Nauchno-Issled. Inst. Geol. Geofiz. Mineral Syr., 1960, pp. 152–253.
Egorova, L.I. and Savitsky, V.E., Trilobites of the Mayan Stage of the northern Siberian Platform, Paleontol. Zh., 1968, no. 1, pp. 58–70.
Egorova, L.I. and Savitsky, V.E., Stratigraphy and biofacies of the Cambrian of the Siberian Platform: Western Anabar Region, Tr. Sib. Nauchno-Issled. Inst. Geol. Geofiz. Mineral Syr., 1969, vol. 43, pp. 1–408.
Egorova, L.I., Shabanov, Yu.Ya., Pegel, T.V, Savitsky, V.E., Sukhov, S.S., and Chernysheva, N.E., Maiskii yarus stratotipicheskoi mestnosti (srednii kembrii yugo-vostoka Sibirskoi platformy) (Mayan Stage of the Stratotypic Region: Middle Cambrian of the Southeastern Siberian Platform), Moscow: Nauka, 1982, pp. 1–146.
Egorova, L.I., Shabanov, Yu.Ya., Rozanov, A.Yu., Savitsky, V.E., Chernysheva, N.E., and Shishkin, B.B., Elanka and Kuonamka facies stratotypes of the lower boundary of the Middle Cambrian of Siberia, Tr. Sib. Nauchno-Issled. Inst. Geol. Geofiz. Mineral Syr., 1976, vol. 211, pp. 1–228.
Fletcher, T.P., Ovatoryctocara granulata: The key to a global Cambrian stage boundary and the correlation of the olenellid, redlichiid and paradoxidid realms, Spec. Pap. Paleontol., 2003, no. 70, pp. 73–102.
Geyer, G., The base of a revised Middle Cambrian: Are suitable concepts for a series boundary in reach?, Geosci. J., 2005, vol. 9, no. 2, pp. 81–99.
Goryaeva, I.E., Pegel, T.V., Shabanov, Yu.Ya., and Bushuev, E.V., New data on stratigraphic range of trilobite Bathynotus in the Cambrian of the Siberian Platform, J. Guizhou Univ. Natur. Sci., 2012, vol. 29, suppl. 1, pp. 1–164.
Hall, J., Trilobites of the shales of the Hudson River Group. in 12th Annual Report of the Regents of the University of the State of New York, on the condition of the State Cabinet of Natural History, and the Historical and Antiquarian Collection connected therewith, Albany, New York, 1859.
Hawle Ignaz and Corda, A.J.C., Prodrom einer Monographie der böhmischen Trilobiten: Abhandlungen Koeniglichen Boehmischen Gesellschaft der Wissenschaften, Calve, J.G., Ed., Prague, 1847.
Huang, Y.-zh. and Yuan, J.-l., Peronopsis of Early–Middle Cambrian Kaili Area, Guizhou, Acta Palaeontol. Sin., 1994, vol. 33, no 3, pp. 295–304.
Jell, P.A. and Robison, R.A., Revision of a late Middle Cambrian trilobite faunule from northwestern Queensland, Univ. Rans. Paleontol. Contrib. Pap., 1978, no. 91, pp. 1–10.
Kobayashi, T., On the Agnostids (Part I), J. Fac. Sci. Imp. Univ. Tokyo, 1939, sec. 2, vol. 5, part 5, pp. 69–198.
Korovnikov, I.V., Lower and Middle Cambrian boundary and trilobites from northeast Siberian Platform, Palaeoworld, 2001, vol. 13, pp. 270–275.
Korovnikov, I.V. and Shabanov, Yu.Ya., Trilobites from the boundary beds of the Lower and Middle Cambrian of the stratotypic section on the Molodo River (eastern Siberian Platform), in Razrezy kembriya Sibirskoi platformy–kandidaty v stratotipy podrazdelenii Mezhdunarodnoi stratigraficheskoi shkaly (stratigrafiya i paleontologiya). Materialy k 13-i Mezhdunarodnoi polevoi konferentsii rabochei gruppy po yarusnomu deleniyu kembriya (Sections of the Cambrian of the Siberian Platform–-Candidates for Stratotypes of Divisions of the International Stratigraphical Chart (Stratigraphy and Paleontology): Materials to the 13th International field conference of the Working Group for the Stage Division of the Cambrian), Novosibirsk: Sib. Otd. Ross. Akad. Nauk, 2008, pp. 71–104.
Krys’kov, L.N., Lazarenko, N.P., Ogienko, L.V., and Chernysheva, N.E., New Early Paleozoic trilobites of Eastern Siberia and Kazakhstan, in Novye vidy drevneishikh rastenii i bespozvonochnykh SSSR, ch. II (New Species of the Earliest Plants and Invertebrates of the USSR: Part 2), Moscow: Nedra, 1960, pp. 211–255.
Lazarenko, N.P., On a find of Bathynotus in the Cambrian deposits of the northern Siberian Platform, Sb. Stat. Paleontol. Biostratigr., Leningrad: Nauchno-Issled. Inst. Geol. Arkt., 1958, vol. 8, pp. 15–19.
Lazarenko, N.P., Some new Middle Cambrian trilobites of northern Middle Siberia, Uch. Zap. Nauchno-Issled. Inst. Geol. Arkt. Paleontol. Biostratigr., 1965, vol. 7, pp. 14–36.
Lermontova, E.V., Class Trilobita, in Atlas rukovodyashchikh form iskopaemykh faun SSSR (Atlas of Index Taxa of Fossil Faunas of the USSR), vol. 1: Kembrii (Cambrian), Moscow–Leningrad: Gosgeolizdat, 1940, pp. 112–157.
Lisogor, K.A., Srednekembriiskie trilobity khrebta Chingiz (Vostochnyi Kazakhstan) (Middle Cambrian Trilobites of the Chingiz Mountain Range (Eastern Kazakhstan)), Almaty: SV-PRINT, 2004.
Lorenz, T., Beitrage zur Geologie und Palaeontologie von Ostasien unter besonderer Berucksichtigung der Provinz Schantung in China: II Palaeontologischer, Teil. Deutsch. Geol. Gesell. Zeitschr., 1906, vol. 58, pp. 53–108.
Matthew, G.F., Fragments of the Cambrian Faunas of Newfoundland, Proc. Transact. Roy. Soc. Can., Ser. II, 1899, vol. 5 (Studies on Cambrian Faunas), pp. 67–133.
Melnikov, N.V., Shabanova, O.S., and Goryaeva, I.E., Improvement of Cambrian stratigraphy of the Bakhta area of the Turukhansk–Irkutsk–Olekma Region of the Siberian Platform (based on the study of parametrical borehole Nizhny Imbak 219), Geol. Mineral.-Syr. Res. Sib., 2013, no. 2 (14), pp. 35–44.
Naimark, E., Hundred species of the genus Peronopsis Hawle et Corda, 1847, Paleontol. J., 2012, vol. 46, no. 9, pp. 945–1057.
Ogienko, L.V., Biostratigraphy and trilobites of the Middle Cambrian of the Daldyn–Alakit Region of Yakutia, Stratigrafiya i biostratigrafiya yuga Vostochnoi Sibiri (Stratigraphy and Biostratigraphy of Southern Eastern Siberia), Irkutsk: VostSibNIIGGiMS, 1991, pp. 14–37.
Ogienko, L.V. and Garina, S.Yu., Stratigrafiya i trilobity kembriya Sibirskoi platformy (Stratigraphy and Trilobites of the Cambrian of the Siberian Platform), Moscow: Nauchn. Mir, 2001.
Öpik, A.A., Middle Cambrian agnostids: Systematics and biostratigraphy, Austral. Gov. Publ. Serv. Bur. Min. Res., Geol. Geophys., Bull., 1979, vol. 172, pp. 1–188.
Pegel, T.V. and Sukhov, S.S., Environments of sedimentation and biofacies of trilobites of the Cambrian of the Siberian Platform, Regional’naya stratigrafiya pozdnego dokembriya i paleozoya Sibiri (Regional Stratigraphy of the Late Precambrian and Paleozoic of Siberia), Novosibirsk: Sib. Nauchno-Issled. Inst. Geol. Geofiz. Mineral Syr., 2013, pp. 15–35.
Peng, J., Zhao, Y., Yuan, J., Yao, Lu., and Yang, H., Bathynotus: A key trilobite taxon for global stratigraphic boundary correlation between Cambrian series 2 and Cambrian series 3, Progress Natur. Sci., 2009, vol. 19, pp. 99–105.
Poletaeva, O.K., Genus Chondranomocare Poletayeva gen. nov., Materialy po paleontologii. Novye semeistva i rody (Data on Paleontology: New Families and Genera), Moscow: Gosgeoltekhizdat, 1956, pp. 169–170.
Postanovleniya Mezhvedomstvennogo stratigraficheskogo komiteta Rossii (Resolution of the Interdepartmental Stratigraphical Committee of Russia), St. Petersburg, 2016, vol. 44, pp. 1–66.
Rasetti, F., Middle Cambrian stratigraphy and faunas of the Canadian Rocky Mountains, Smiths. Miscell. Coll., 1951, vol. 116, no. 5, pp. 1–277.
Repina, L.N., Trilobite assemblages from the Lower and Middle Cambrian of the western East Sayan, in Regional’naya stratigrafiya SSSR (Regional Stratigraphy of the USSR), Moscow: Akad. Nauk SSSR, 1960, vol. 4, pp. 171–225.
Repina, L.N., Lazarenko, N.P., Meshkova, N.P., Korshunov, V.I., Nikiforov, N.I., and Aksarina, N.A., Biostratigraphy and fauna of the Lower Cambrian of Kharaulakh (Tuora-Sis Mountain Range), Tr. Inst. Geol. Geofiz. Sib. Otd. Akad. Nauk SSSR, 1974, vol. 235, pp. 1–299.
Resheniya Vsesoyuznogo stratigraficheskogo soveshchaniya po dokembriyu, paleozoyu i chetvertichnoi sisteme Srednei Sibiri, chast’ 1 (verkhnii proterozoi i nizhnii paleozoi) (Resolution of All-Union Stratigraphical Meeting on the Precambrian, Paleozoic, and Quaternary System of Middle Siberia: Part1. Upper Proterozoic and Lower Paleozoic), Novosibirsk: Sib. Nauchno-Issled. Inst. Geol. Geofiz. Mineral Syr., 1983.
Resser, Ch., The Ptarmigania strata of the northern Wasatch Mountains, Smith. Misc. Coll., 1939, vol. 98, no. 24, pp. 1–72.
Robison, R.A., Middle Cambrian trilobite biostratigraphy of the Great Basin, B. Young Univ. Geol. Stud., 1976, vol. 23, pp. 93–109.
Robison, R.A., Some Middle Cambrian agnostoid trilobites from western North America, J. Paleontol., 1982, vol. 56, no. 1, pp. 132–160.
Robison, R.A., Revision of the Middle Cambrian trilobite Agnostus acadicus Hartt., J. Paleontol., 1995, vol. 69, no. 1, pp. 302–306.
Romanenko, M.F., Romanenko, E.V., Shirokova, E.V., and Aksarina, N.A., On the early Middle Cambrian of the Sayany–Altai Mountain Region, in Stratigrafiya dokembriya i kembriya Srednei Sibiri. Trudy Mezhvedomstvennogo soveshchaniya po razrabotke unifitsirovannykh i korrelyatsionnykh stratigraficheskikh skhem dokembriiskikh i kembriiskikh otlozhenii Srednei Sibiri, Novosibirsk, 1965 (Stratigraphy of the Precambrian and Cambrian of Middle Siberia: Proceedings of the Interdepartmental Meeting on the Development of the Unified and Correlation Stratigraphic Schemes of the Precambrian and Cambrian Deposits of Middle Siberia, Novosibirsk, 1965), Krasnoyarsk: Krasnoyarsk. Knizh. Izd., 1967, pp. 155–169.
Savitsky, V.E., Evtushenko, V.M., Egorova, L.I., Kontorovich, A.E., and Shabanov, Yu.Ya., Cambrian of the Siberian Platform (Yudoma–Olenek type of section: Kuonamka complex of deposits), Tr. Sib. Nauchno-Issled. Inst. Geol. Geofiz. Mineral Syr., 1972, vol. 130, pp. 1–199.
Savitsky, V.E., Shabanov, Yu.Ya., and Shishkin, B.B., Stratigraphy of the Lower Cambrian and Early–Middle Cambrian deposits of the Igarka Region, Tr. Sib. Nauchno- Issled. Inst. Geol. Geofiz. Mineral Syr., 1964, vol. 32, part 2, pp. 42–68.
Shabanov, Yu.Ya., Astashkin, V.A., Pegel, T.V., Egorova, L.I., Zhuravleva, I.T., Pelman, Yu.L., Sundukov, V.M., Stepanova, M.V., Sukhov, S.S., Fedorov, A.B., Shishkin, B.B., Vaganova, N.V., Ermak, V.I., Ryabukha, K.V., Yadrenkina, A.G., Abaimova, G.P., Lopushinskaya, T.V., Sychev, O.V., and Moskalenko, T.A., Nizhnii paleozoi yugozapadnogo sklona Anabarskoi anteklizy (po materialam bureniya) (Lower Paleozoic of the Southwestern Slope of the Anabar Anteclise Based on the Results of Drilling), Novosibirsk: Nauka, 1987.
Shabanov, Yu.Ya, Korovnikov, I.V., Pereladov, V.S., and Fefelov, A.F., Excursion 1a: The traditional Lower–Middle Cambrian boundary in the Kuonamka Formation of the Molodo River section (the southeastern slope of the Olenek Uplift of the Siberian Platform) proposed as a candidate for GSSP of the lower boundary of the Middle Cambrian and its basal (Molodian) stage, defined by the FAD of Ovatoryctocara granulata, in The Cambrian System of the Siberian Platform: Part2. North-East of the Siberian Platform, Moscow–Novosibirsk: Paleontol. Inst. Ross. Akad. Nauk, 2008, pp. 8–59.
Shergold, J.H. and Laurie, J.R., Suborder Agnostina Salter, 1864, in Treatise on Invertebrate Paleontology: Part O. Arthropoda I: Trilobita I, Lawrence: Univ. Kansas Press, 1997, pp. 331–383.
Sobolev, P.N., Sukhoruchko, V.I., and Antsiferova, O.A., Analogues of Domanik deposits of the Kuonamka Formation in the western Siberian Platform, in “Uspekhi organicheskoi geokhimii”: Materialy Vserossiiskoi nauchnoi konferentsii (11–15 okt. 2010 g.) (Achievements in Organic Geochemistry: Materials of All-Russia Scientific Conference, October 11–15, 2010), Kontorovich, A.E., Ed., Novosibirsk: Inst. Geol. Geofiz. Sib. Otd. Ross. Akad. Nauk, 2010, pp. 315–319.
Stratigrafiya neftegazonosnykh basseinov Sibiri. Kembrii Sibirskoi platformy (Stratigraphy of the Oil-and-Gas-bearing Basins of Siberia: Cambrian of the Siberian Platform), Kontorovich, A.E., Ed., Novosibirsk: Akad. Izd. GEO, 2016, vols. 1 and 2.
Sukhov, S.S., Cambrian depositional history of the Siberian craton: Evolution of the carbonate platforms and basins, Sediment. Fac. Palaeogeogr., 1997, vol. 17, no. 5, pp. 27–39.
Sundberg, F.A., Phylogenetic analysis of the spiny oryctocephalids (Trilobita: Corynexochida?: Oryctocephalidae), Cambrian, J. Paleontol., 2014, vol. 88, pp. 556–587.
Sundberg, F.A., Geyer, G., Kruse, P.D., and McCollum, L.B., Pegel’, T.V., Żylińska, A., and Zhuravlev, A.Yu., International correlation of the Cambrian Series 2–3, Stage 4–5 boundary interval, Austral. Palaeontol. Mem., 2016, vol. 49, pp. 83–124.
Sundberg, F.A., Zhao, Y., Yuan, J., and Lin, J., Detailed trilobite biostratigraphy across the proposed GSSP for Stage 5 (“Middle Cambrian” boundary) at the Wuliu- Zengjiayan section, Guizhou, China, Bull Geosci., 2011, vol. 86, no. 3, pp. 423–464.
Tchernysheva, N.E., Genus Kounamkites Lermontova (in coll.); Genus Pseudanomocarina Tchernysheva gen. nov., in Materialy po paleontologii. Novye semeistva i rody (Data on Paleontology: New Families and Genera), Moscow: Gosgeoltekhizdat, 1956, pp. 152–156, 166–169.
Tchernysheva, N.E., Stratigrafiya kembriya Aldanskoi anteklizy i paleontologicheskoe obosnovanie vydeleniya amginskogo yarusa (Stratigraphy of the Cambrian of the Aldan Anteclise and Paleontological Foundation for the Recognition of the Amgan Stage), Leningrad: Gostoptekhizdat, 1961.
Tchernysheva, N.E., Cambrian trilobites of the family Oryctocephalidae, Tr. Nauchno-Issled. Inst. Geol. Arkt., 1962, vol. 127, no. 3, pp. 3–52.
Treatise on Invertebrate Paleontology: Part O. Arthropoda I: Trilobita I, Revised, Whittington, H.B., Chatterton, B.D.E., Speyer, S.E., Fortey. R.A., et al., Boulder–Colorado–Lawrence, Kansas: Geological Society of America, Inc. and The University of Kansas, 1997, vol. 1.
Tullberg, S.A., Om Agnostus-asterna i de kambriska aflagringarna vid Andrarum, Sver. Geol. Undersok. Ser. C, 1880, no. 42, pp. 1–38.
Walcott, C.D., Second contribution to the studies on the Cambrian faunas of North America, US Geol. Surv. Bull., 1886, vol. 30, pp. 1–369.
Webster, M., Systematic revision of the Cambrian trilobite Bathynotus Hall, 1860, with documentation of new occurrences in western Laurentia and implications for intercontinental biostratigraphic correlation, Mem. Ass. Australas. Palaeontol., 2009, vol. 37, pp. 369–406.
Westergård, A.H., Paradoxides oelandicus beds of Oland: With the account of a diamond boring through the Cambrian at Mossberga, Sver. Geol. Undersok., Ser. C, 1936, no. 394, part 30, pp. 1–66.
Yuan, J.L., Zhao, Y.L., Li, Y., and Huang, Y.Z., Trilobite fauna of the Kaili Formation (uppermost Lower Cambrian–lower Middle Cambrian) from southeastern Guizhou, south China, Shanghai: Shanghai Sci. Technol. Press, 2002.
Zhao, Y.L., Yuan, J.L., Peng, S.C., Babcock, L.E., Peng, J., Lin, J.P., Guo, Q.J., and Wang, Y.X., New data on the Wuliu-Zengjiayan section (Balang, South China), GSSP candidate for the base of Cambrian Series 3, Mem. Ass. Australas. Palaeontol., 2007, vol. 33, pp. 57–65.
Zhao Y.L., Yuan J.L., Peng, S.C., Guo, Q.J., Zhu, L.J., Peng, J., and Wang, P.L., Proposal and prospects for the global Lower–Middle Cambrian boundary, Progr. Natur. Sci., 2004, vol. 14, pp. 1033–1038.
Zhao, Y., Yuan, J., Peng, S., Yang, X., Peng, J., Lin, J., and Guo, Q., A restudy of Oryctocephalus indicus (Reed, 1910), Progr. Natur. Sci., 2006, vol. 16, no. 11, pp. 1–6.
Zhao, Y.L., Yuan, J.L., Zhu, M.Y., Babcock, L.E., Peng, J., Wang, Y., Yang, X.L., Guo, Q.-J., Yang, R.-D., and Tai, T.-S., Balang section, Guizhou, China: Stratotype section for the Taijiangian Stage and candidate for GSSP of an unnamed Cambrian series, in Cambrian System of China and Korea: Guide to Field Excursions, Hefei: Univ. Sci. Technol. China Press, 2005, pp. 62–83.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Pegel, T.V., Shabanov, Y.Y., Bushuev, E.V. et al. Middle Cambrian trilobites from Borehole Nizhny Imbak 219 (northwestern Siberian Platform). Paleontol. J. 51, 1249–1292 (2017). https://doi.org/10.1134/S0031030117120024
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0031030117120024