Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-28T05:18:56.410Z Has data issue: false hasContentIssue false

Paleobiology of the Neoproterozoic (Upper Riphean) Shorikha and Burovaya silicified microbiotas, Turukhansk Uplift, Siberia

Published online by Cambridge University Press:  14 July 2015

Vladimir N. Sergeev*
Affiliation:
Geological Institute, Russian Academy of Sciences, Pyzhevskii per., 7, Moscow, 109017, Russia

Abstract

Diverse assemblages of silicified microfossils have been detected in lenses of black chert within peritidal carbonates of the Neoproterozoic (Upper Riphean) Shorikha and Burovaya formations, Turukhansk Uplift, northeastern Siberia. These microbiotas are represented by 19 species of simple filamentous and coccoidal microfossils, multicellular trichomes, and thick-enveloped sphaeromorphic and acanthomorphic acritarchs. Microfossils include both prokaryotic (possibly cyanobacterial) and eukaryotic (mainly phytoplanktonic) microorganisms. The eukaryotes in these formations are relatively diverse—the result of an explosive radiation near the Meso-Neoproterozoic boundary. The discovery of abundant phytoplanktonic microorganisms in the Shorikha and Burovaya cherts increases the biostratigraphical potential of Proterozoic silicified microbiotas and fills a gap in the paleontological record of the Turukhansk Uplift, a potential candidate for the stratotype of the Meso-Neoproterozoic boundary. The affinities of the formally described taxa are postulated as follows: Oscillatoriaceae: Eomicrocoleus crassus Horodyski and Donaldson, 1980; Oscillatoriopsis obtusa Schopf and Blacic, 1971; O. media Mendelson and Schopf, 1982; Oscillatoriaceae or Nostocaceae: Siphonophycus robustum (Schopf, 1968); S. typicum (Hermann, 1974); S. solidum (Golub, 1979); Nostocaceae or Stigonemataceae: Archaeoellipsoides minor (Golovenoc and Belova, 1984); Chroococcaceae: Gloeodiniopsis lamellosa Schopf, 1968, Eosynechococcus grandis Hofmann, 1976; Incertae sedis: Scissilisphaera gradata Green, Knoll and Swett, 1989; Myxococcoides minor Schopf, 1968; M. inornata Schopf, 1968; M. stragulescens Green, Knoll, and Swett, 1989; Myxococcoides sp.; Pterospermopsimorpha? sp.; Shorikhosphaeridium knolli new genus and species; Leiosphaeridia jacutica (Timofeev); problematic ellipsoidal forms; and problematic spiny forms.

Type
Research Article
Copyright
Copyright © The Paleontological Society 2001

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bartley, J., Pope, M., Knoll, A. H., Semikhatov, M. A., and Petrov., P. Yu. 1998. A Vendian-Cambrian boundary succession from the northwestern margins of the Siberian Platform: stratigraphy, paleontology, chemostratigraphy and correlation. Geological Magazine, 135:473494.CrossRefGoogle Scholar
Beeanus, M. A., and Knauth., L. P. 1985. Preserved stable isotopic signature of subaerial diagenesis in the 1. 2.-b.y. Mescal Limestone, central Arizona: implications for the timing and development of a terrestrial flora. Geological Society of America Bulletin, 96:737745.2.0.CO;2>CrossRefGoogle Scholar
Buick, R., DesMarais, D. J., and Knoll., A. H. 1995. Stable isotopic compositions of carbonates from the Mesoproterozoic Bangemall Group, northwestern Australia. Chemical Geology, 123:153171.CrossRefGoogle ScholarPubMed
Butterfield, N. J., Knoll, A. H., and Swett., K. 1990. A bangiophyte red alga from the Proterozoic of Arctic Canada. Science, 250:104107.CrossRefGoogle ScholarPubMed
Butterfield, N. J., Knoll, A. H., and Swett., K. 1994. Paleobiology of the Neoproterozoic Svanbergfjellet Formation, Spitsbergen. Fossils and Strata, 34,84.Google Scholar
Castenholz, R. W., and Waterbury., J. B. 1989. Oxygenic Photosynthetic Bacteria (Section 19), Group I. Cyanobacteria, p. 17101799. In Stanley, J. T. (ed.), Bergey's Manual of Systematic Bacteria. Williams and Wilkins, Baltimore.Google Scholar
Dragunov, V. I. 1963. Turukhanskii i Igarskii raiony (Turukhansk and Igarka regions), p. 318331. In Keller, B. M. (ed.), Stratigrafiya SSSR. Verkhnii dokembrii (Stratigraphy of the USSR. Upper Precambrian). Gosgeoltekhizdat, Moscow.Google Scholar
Eisenack, A. 1958. Microfossilien aus dem Ordovizium des Baltikums, 1, Markasitschicht, Dictyonema-Scheifer, Glaukonitsand, Glaukonitkalk. Senckenbergian Lethaea, 39:389404.Google Scholar
Elenkin, A. A. 1938. Monographie algarum Cyanophycearum aquidulcium et terrestrium infinibus URSS inventarum. Izdatelstvo AN SSSR, Moscow, Pars specialis (Systematica), Fascicie I,984. (In Russian)Google Scholar
Elenkin, A. A. 1949. Monographie algarum Cyanophycearum aquidulcium et terrestrium infinibus URSS inventarum. Izdatelstvo AN SSSR, Moscow, Pars specialis (Systematica), Fascicie 11:985-1908. (In Russian)Google Scholar
Gerasimenko, L. M., and Krylov., I. N. 1983. Posmertnye izmeneniya cyanobacterii v vodoroslevo-bacterialnykh plenkakh termalnykh istochnikov Kamchatki (Post-mortem alterations of cyanobacteria in the algal-bacterial films from the thermal springs of Kamchatka). Doklady Akademii Nauk SSSR, 272:201203.Google Scholar
Golovenok, V. K., and Belova., M. Yu. 1983. Nakhodki obruchevell v rifee Patomskogo Nagirya i v vende Yuzhnogo Kazahstana (The finds of microfossils genus Obruchevella in the Riphean of the Patoma Uplift and Vendian of southern Kazakhstan). Doklady Academii Nauk SSSR, 272:14621465.Google Scholar
Golovenok, V. K., and Belova., M. Yu. 1985. Rifeyskie mikrobioty v kremnyakh Yeniseiskogo Kryazha (Riphean microbiotas in cherts of the Yenisei Ridge). Paleontologicheskii zhurnal, 2:94103.Google Scholar
Golovenok, V. K., and Belova., M. Yu. 1992. Mikrofossilii v kremnyakh iz suhotungusskoi svity rifeya Turukhanskogo podnyatia (Microfossils in cherts from the Sukhaya Tunguska Formation, Riphean, Turukhansk Uplift). Doklady Akademii Nauk, 323:114118.Google Scholar
Golovenok, V. K., and Belova., M. Yu. 1993. The microfossils in the cherts from the Riphean deposits of the Turukhansk Uplift. Stratigraphy and Geological Correlation, 1:5161.Google Scholar
Golub, I. N. 1979. Novaya gruppa problematichnykh mikroobrazovanii v vendskhih otlozheniyakh Orshanskoi vpadiny (Russkaya platforma) [A new group of problematic microstructures in vendian deposits of the Orshansk basin (Russian Platform)], p. 147155. In Sokolov, B. S. (ed.), Paleontologiya dokembria i rannego kembria (Paleontology of Precambrian and Early Cambrian). Nauka, Leningrad.Google Scholar
Golubic, S., and Focke., J. P. 1978. Phormidium hendersonii Howe: identity and significance of a modern stromatolite building microorganism. Journal of Sedimentary Petrology, 48:751764.Google Scholar
Golubic, S., Sergeev, V. N., and Knoll., A. H. 1995. Mesoproterozoic Archaeoellipsoides: akinetes of heterocystous Cyanobacteria. Lethaia, 28:285298.CrossRefGoogle ScholarPubMed
Gorokhov, I. M., Semikhatov, M. A., Baskakov, A. B., Kutyavin, E. P., Mel'nikov, N. N., Sochava, A. V., and Turchenko., T. L. 1995. Sr isotopic composition in Riphean, Vendian, and Lower Cambrian carbonates from Siberia. Stratigraphy and Geological Correlation, 3:128.Google Scholar
Green, J. W., Knoll, A. H., and Swett., K. 1989. Microfossils from silicified stromatolitic carbonates of the Upper Proterozoic Limestones-Dolomite “Series”, central East Greenland. Geological Magazine, 119:527551.Google Scholar
Green, J. W., Knoll, A. H., Golubic, S., and Swett., K. 1987. Paleobiology of distinctive benthic microfossils from the Upper Proterozoic Limestone-Dolomite “Series”, central East Greenland. American Journal of Botany, 74:928940.CrossRefGoogle ScholarPubMed
Han, T. M., and Runnegar., B. 1992. Megascopic eukaryotic algae from 2. I-billion-year-old Negaunee Iron-Formation, Michigan. Science, 257:232235.CrossRefGoogle ScholarPubMed
Hermann, T. N. 1974. Nakhodki massovykh skoplenii trikhomov v rifee (Finds of massive accumulation of trichomes in the Riphean), p. 610. In Timofeev, B. V. (ed.), Mikrofossilii proterozoya i rannego paleozoya SSSR (Microfossils of the Proterozoic and early Paleozoic of the USSR). Nauka, Leningrad.Google Scholar
Hermann, T. N. 1990. Organicheskii mir milliard let nazad (Organic world a billion years ago). Nauka, Leningrad, 50 p.Google Scholar
Hofmann, H. J. 1976. Precambrian microflora, Belcher Island, Canada: Significance and systematics. Journal of Paleontology, 50:10401073.Google Scholar
Hofmann, H. J. 1992. Proterozoic carbonaceous films. In Schopf, J. W. and Klein, C. (eds.), The Proterozoic Biosphere. Cambridge University Press, 1348 p.Google Scholar
Hofmann, H. J., and Jackson., C. D. 1991. Shelf-facies microfossils from the Uluksan Group (Proterozoic Bylot Supergroup), Baffin Island, Canada. Journal of Paleontology, 65:361382.CrossRefGoogle Scholar
Hofmann, H. J., and Jinbiao., C. 1981. Carbonaceous megafossils from the Precambrian (1800 Ma) near Jixian, northern China. Canadian Journal of Earth Sciences, 18:443447.CrossRefGoogle Scholar
Horodyski, R. J., and Donaldson., J. A. 1980. Microfossils from the Middle Proterozoic Dismal Lakes Group, Arctic Canada. Precambrian Research, 11:125159.CrossRefGoogle Scholar
Horodyski, R. J., Bloeser, B., and Haar., S. V. 1977. Laminated algal mats from a coastal lagoon, Laguna Mormona, Baja California. Journal of Sedimentary Petrology, 47:680696.Google Scholar
Kah, L. C., and Knoll., A. H. 1996. Microbenthic distribution of Proterozoic tidal flats: environmental and taphonomic considerations. Geology, 24:7982.2.3.CO;2>CrossRefGoogle ScholarPubMed
Kah, L. C., Sherman, A. G., Narbonne, G. M., Knoll, A. H., and Kaufman., A. J. 1999. I3C stratigraphy of the Proterozoic Bylot Supergroup, Baffin Island, Canada: implications for regional stratigraphic correlations. Canadian Journal of Earth Sciences, 36:120.CrossRefGoogle Scholar
Kaufman, A. J., and Knoll., A. H. 1995. Neoproterozoic variations in the C-isotopic composition of seawater: stratigraphic and biogeochemical implications. Precambrian Research, 73:2749.CrossRefGoogle ScholarPubMed
Khomentovsky, V. V. 1990. Baicalian as a Principal Stage of the Geological Development of Siberia, p. 222237. In Shemyakin, V. M. (ed.), Geologia i Geokhronologia Dokembriya Sibirskoi Platformy i ie Obramleniya (Geology and Geochronology of the Precambrian of the Siberian Platform and its Framwork). Leningrad, Nauka.Google Scholar
Khomentovsky, V. V., Shenfil', V. Yu., and Yakshin., M. S. 1985. The Riphean of the Siberian Platform. Geologia i Geofisika, 7:2533.Google Scholar
Kirchner, O. 1900. Shizophyceae, p. 115121. In Engler, A. and Prantl, K. (eds.), Die natürlichen Pflanzenfamilien, I Teil, Abteilung Ia. Leipzig.Google Scholar
Klein, C., Beukes, N. J., and Schopf., J. W. 1987. Filamentous microfossils in the Early Proterozoic Transvaal Supergroup: their morphology, significance, and paleoenvironmental setting. Precambrian Research, 36:8194.CrossRefGoogle Scholar
Knoll, A. H. 1982. Microfossils from the Late Precambrian Draken Conglomerate, Ny Friesland, Svalbard. Journal of Paleontology, 56:755790.Google Scholar
Knoll, A. H. 1984. Microbiotas of the Late Precambrian Hunnberg Formation, Nordaustlandet, Svalbard. Journal of Paleontology, 58:131162.Google Scholar
Knoll, A. H. 1992a. The early evolution of eukaryotes: a geological perspective. Science, 256:622627.CrossRefGoogle Scholar
Knoll, A. H. 1992b. Vendian microfossils in metasedimentary cherts of the Scotia Group, Prins Karls Forland, Svalbard. Palaeontology, 35:751774.Google Scholar
Knoll, A. H. 1996. Archean and Proterozoic Paleontology, p. 5180. In Jansonius, J. and McGregor, D. C. (eds.), Palynology: Principles and Applications. American Association of Stratigraphic Palynologists Foundation, 1.Google Scholar
Knoll, A. H., and Calder., S. 1983. Microbiotas of the Late Precambrian Ryssö Formation, Nordaustlandet, Svalbard. Palaeontology, 26:467496.Google Scholar
Knoll, A. H., and Golubic., S. 1979. Anatomy and Taphonomy of a Precambrian algal stromatolite. Precambrian Research, 10:115151.CrossRefGoogle Scholar
Knoll, A. H., and Sergeev., V. N. 1995. Taphonomic and Evolutionary changes across the Mesoproterozoic-Neoproterozoic Transition. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 195:289302.CrossRefGoogle ScholarPubMed
Knoll, A. H., Kaufman, A. J., and Semikhatov., M. A. 1995. The carbon isotopic composition of Proterozoic carbonates: Riphean successions from north-eastern Siberia (Anabar Massif, Turukhansk Uplift). American Journal of Sciences, 295:823850.Google Scholar
Knoll, A. H., Strother, P. K., and Rossi., S. 1988. Distribution and diagenesis of microfossils from the lower Proterozoic Duck Creek Dolomites, Western Australia. Precambrian Research, 38:257279.CrossRefGoogle Scholar
Knoll, A. H., Swett, K., and Burkhardt., E. 1989. Paleoenvironmental distribution of microfossils and stromatolites in the Upper Proterozoic Backlundtoppen Formation, Spitsbergen. Journal of Paleontology, 63:129145.CrossRefGoogle ScholarPubMed
Knoll, A. H., Swett, K., and Mark., J. 1991. Paleobiology of a Neoproterozoic tidal flat/lagoonal complex: the Draken Conglomerate Formation, Spitsbergen. Journal of Paleontology, 65:531570.CrossRefGoogle ScholarPubMed
Komar, Vl. A. 1990. Stromatolites in Correlation of Riphean Reference Sections in Siberia and the Urals. Izvestia Akademii Nauk SSSR, Seria Geologicheskaya, 10:315.Google Scholar
Kondratieva, N. V. 1975. Morfogenes i osnovnye puti evolutsii gormogonievyh vodorosley (Morphogenesis and main ways of evolution of the hormogonian algae). Kiev, Naukova Dumka, 302. (In Russian)Google Scholar
Krylov, I. N. 1975. Stromatolity Rifeya i Fanerozoya SSSR (Riphean and Phanerozoic Stromatolites of the USSR). Moscow, Nauka, 243 p.Google Scholar
Mendelson, C. V., and Schopf., J. W. 1982. Proterozoic microfossils from the Sukhaya Tunguska, Shorikha, and Yudoma Formations of the Siberian platform, USSR. Journal of Paleontology, 56:4283.Google Scholar
Nägeli, C. 1849. Gattungen einzelliger Algen, physiologisch und under systematisch bearbeitet. Neue Denkschriften der Allgemeinen schweizerischen Gesellschaft für die gesamten Naturwissenschaften, 8:4460.Google Scholar
Nyberg, A. V., and Schopf., J. W. 1984. Microfossils in stromatolitic cherts from the Upper Proterozoic Min'yar Formation, southern Ural Mountains. Journal of Paleontology, 58:738772.Google ScholarPubMed
Oehler, D. Z. 1978. Microflora of the middle Proterozoic Balbirini Dolomite (McArthur Group) of Australia. Alcheringa, 2:269310.CrossRefGoogle Scholar
Ogurtsova, R. N., and Sergeev., V. N. The microbiota of the Upper Precambrian Chichkanskaya Formation in the Lesser Karatay Region (southern Kazakhstan). Paleontologicheskii Zhurnal, 2:101112. (English version)Google Scholar
Ovchinnikova, G. V., Semikhatov, M. A., Gorokhov, I. M., Belyatskii, B. V., Vasilieva, I. M., and Levskii., L. K. 1995. U-Pb Systematic of Pre-Cambrian Carbonates: the Riphean Sukhaya Tunguska Formation in the Turukhansk Uplift, Siberia. Lithology and Mineral Resources, 30:477487.Google Scholar
Pavlov, V. E., Burakov, K. S., Chelmovich, V. A., and Zhuravlev., D. Z. 1992. Paleomagnetizm sillov Uchuro-Mayskogo raiona i otzhenka napryazhyeonnosti geomagnitnogo polya v pozdnem riphee (Paleomagnetism of sills from the Uchuro-Maya Uplift and evaluation of Earth's geomagnetic field intensity in Late Riphean). Physic of Earth, 1:92101.Google Scholar
Peat, J. C., Muir, M. D., Plumb, K. A., McKirdy, D. M., and Norvick., M. C. 1978. Proterozoic microfossils from the Roper Group, Northern Territory, Australia. Bureau of Mineral Resources, Journal of Australian Geology and Geophysics, 3:117.Google Scholar
Petrakov, V. U. 1964. Stratigrafia Nizhnego Paleozoya Turukhanskogo Raiona (Lower Paleozoic stratigraphy of the Turukhansk Region). Geologia i geofisika (Geology and Geophysics), 4:1934.Google Scholar
Petrov, P. Yu. 1993. Depositional environments of the lower formations of the Riphean Sequence, northern part of the Turukhansk Uplift, Siberia. Stratigraphy and Geological Correlation, 1:181191.Google Scholar
Petrov, P. Yu., and Semikhatov., M. A. 1998. The Upper Riphean stromatolitic reefal complex: Burovaya Formation of the Turukhansk region, Siberia. Stratigraphy and Geological Correlation, 33:539560.Google Scholar
Petrov, P. Yu., and Veis., A. F. 1995. Facial-Ecological Structure of the Derevnya Formation Microbiota: Upper Riphean of the Turukhansk Uplift, Siberia. Stratigraphy and Geological Correlation, 3:435460.Google Scholar
Petrov, P. Yu., Semikhatov, M. A., and Sergeev., V. N. 1995. Development of the Riphean carbonate platform and distribution of silicified microfossils: The Sukhaya Tunguska Formation, Turukhansk Uplift, Siberia. Stratigraphy and Geological Correlation, 3:7999.Google Scholar
Plumb, K. A. 1991. New Precambrian time scale. Episodes, 14:139140.CrossRefGoogle Scholar
Rainbird, R. H., Stern, R. A., Khudoley, A. K., Kropachev, A. P., Heaman, L. M., and Sukhorukov., V. I. 1998. U-Pb geochronology of Riphean sandstones and gabbro from southeast Siberia and its bearing on the Laurentia-Siberia connection. Earth and Planetary Sciences Letters, 164:409420.CrossRefGoogle Scholar
Schenfil', V. Yu. 1983. Vodorosli v dokembriiskih otlozheniyakh Vostochnoi Sibiri (Algae in the Precambrian deposits of Eastern Siberia). Doklady AN SSSR, 269:471473.Google Scholar
Schenfil', V. Yu. 1991. Pozdnii dokembrii Sibirskoi platformy (Late Precambrian of the Siberian Craton). Novosibirsk, Nauka, 185 p.Google Scholar
Schidlowski, M., Eichman, R., and Junge., C. E. 1975. Precambrian sedimentary carbonates: carbon and oxygen isotope geochemistry and implications for the terrestrial oxygen budget. Precambrian Research, 2:169.CrossRefGoogle Scholar
Schopf, J. W. 1968. Microflora of the Bitter Springs Formation, Late Precambrian, Central Australia. Journal of Paleontology, 42:651688.Google Scholar
Schopf, J. W. 1977. Biostratigraphic usefulness of stromatolitic Precambrian microbiotas: a preliminary analysis. Precambrian Research, 5:143175.CrossRefGoogle Scholar
Schopf, J. W. 1992. Atlas of representative Proterozoic microfossils, p. 10551118. In Schopf, J. W. and Klein, C. (eds.), The Proterozoic Biosphere. Cambridge University Press, Cambridge.CrossRefGoogle Scholar
Schopf, J. W., and Blacic., J. M. 1971. New microorganisms from the Bitter Springs Formation (Late Precambrian) of the north-central Amadeus Basin, central Australia. Journal of Paleontology, 45:925960.Google Scholar
Schopf, J. W., Mendelson, C. V., Nyberg, A. V., Dolnik, T. A. T., Krylov, I. N., Nazarov, B. B., Sovietov, Yu. K., and Yakshin., M. S. 1977. Six new stromatolitic microbiotas from the Proterozoic of the Soviet Union. Precambrian Research, 4:269285.CrossRefGoogle Scholar
Semikhatov, M. A. 1962. Rifei i Nizhnii Kembrii Eniseiskogo Kryazha (Riphean and Lower Cambrian of the Enisei Ridge). Moscow, Nauka, 242 p.Google Scholar
Semikhatov, M. A. 1991. General problems of Proterozoic stratigraphy in the USSR. Soviet Scientific Reviews, Section Geology, 1:1192.Google Scholar
Semikhatov, M. A., and Serebryakov., S. N. 1983. Sibirskii gipostratotip rifeya (Siberian hipostratotype of the Riphean). Moscow, Nauka, 224 p.Google Scholar
Seong-Joo, L., and Golubic., S. 1998. Multi-trichomous cyanobacterial microfossils from the Mesoproterozoic Gaoyuzhuang Formation, China: Paleoecological and taxonomic implications. Lethaia. 169184.Google Scholar
Serebryakov, S. N. 1975. Osobennosty formirovania i razmeschenia rifeiskikh stromatolitov Sibiri (Peculiarities of formation and location of Riphean Siberian stromatolites). Nauka, Moscow, 175 p.Google Scholar
Sergeev, V. N. 1984. Mikrofossilii v okremnelykh stolbchatykh stromatolitah verkhnego rifeya turukhanskogo raiona (Microfossils in the silicified columnar stromatolites from the Upper Riphean deposits of the Turukhansk Uplift). Doklady AN SSSR, 278:436440.Google Scholar
Sergeev, V. N. 1992. Okremnennye mikrofossilii dokembrya i kembrya Urala i Sredney Azii (Silicified microfossils from the Precambrian and Cambrian deposited of the southern Ural Mountains and Middle Asia). Nauka, Moscow, 134 p.Google Scholar
Sergeev, V. N. 1993. Silicified Riphean microfossils of the Anabar Uplift. Stratigraphy and Geological Correlation, 1:264278.Google Scholar
Sergeev, V. N. 1994. Microfossils in cherts from the Middle Riphean (Mesoproterozoic) Avzyan Formation, southern Ural Mountains, Russian Federation. Precambrian Research, 65:231254.CrossRefGoogle ScholarPubMed
Sergeev, V. N. 1996. Proizhozhdenie shipovatykh akritarch: esho odna gipoteza (Origin of the thorny forms: an extra hypothesis), Palynology for biostratigraphy, paleoecology and palaeogeography. Abstracts of reports on VIII All-Russian Palynological Conference, Moscow. 125126.Google Scholar
Sergeev, V. N. 1997a. Microfossilii v stratigraphii proterozoya: sovremennoye sostoyanie. (Microfossils in Proterozoic stratigraphy: current stage), p. 2128. Rifei Severnoi Evrazii: obstchii problemy stratigraphii. (Riphean of the Northern Eurasia: the general problems). Institute of geology and geophysics Siberian branch of RAS.Google Scholar
Sergeev, V. N. 1997b. Mesoproterozoic Microbiotas of the Northern Hemisphere and the Meso-Neoproterozoic Transition. Proceedings of 30th International Geological Congress, 1:177185.Google Scholar
Sergeev, V. N., and Krylov., I. N. 1986. Mikrofossilii minyarskoi svity basseina reki Inzer (Microfossils of the Min'yar Formation from the basin of Inzer river). Paleontologicheskii zhurnal, 1:8495.Google Scholar
Sergeev, V. N., Knoll, A. H., and Grotzinger., J. P. 1995. Paleobiology of the Mesoproterozoic Billyakh Group, Anabar Uplift, Northeastern Siberia. Paleontological Society Memoir, 39:137.Google Scholar
Sergeev, V. N., Knoll, A. H., and Petrov., P. Yu. 1997. Paleobiology of the Mesoproterozoic-Neoproterozoic Transition: The Sukhaya Tunguska Formation, Turukhansk Uplift, Siberia. Precambrian Research 85:201239.CrossRefGoogle ScholarPubMed
Sergeev, V. N., Knoll, A. H., and Zavarzin., G. A. 1996. Pervye tri milliarda let zhizni: Ot prokariot k eukariotam (First three billion years of life: From prokaryotes to eukaryotes). Priroda, 6:5467.Google Scholar
Sergeev, V. N., Knoll, A. H., Kolosova, S. P., and Kolosov., P. N. 1994. Microfossils in cherts from the Mesoproterozoic Debengda Formation, Olenek Uplift, Northeastern Siberia. Stratigraphy and Geological Correlation, 2:2338.Google ScholarPubMed
Stanier, R. Y., Sistrom, W. R., Hansen, T. A., Whitton, B. A., Castenholz, R. W., Pfennig, N., Gorlenko, V. N., Kondratieva, E. N., Eimhjellen, K. E., Whittenbury, R., Gherna, R. L., and Trüper., H. G. 1978. Proposal to place nomencluture of the Cyanobacteria (blue-green algae) under the rules of the International Code of Nomencluture of bacteria. International Journal of Systematic bacteriology, 28:335336.Google Scholar
Thuret, G. 1875. Essai de classification des nostocines. Annales des Sciences Naturelles, Paris (Botanique), 6:372382.Google Scholar
Timofeev, B. V. 1966. Sferomorfidy Proterozoya (Proterozoic Spheromorphyda). Nauka, Lenengrad, 145 p.Google Scholar
Timofeev, B. V., Hermann, T. N., and Michailova., N. S. 1976. Mikrofitofossilii dokembria, kembria i ordovika (Microphytofossils of the Precambrian, Cambrian and Ordovician). Nauka, Leningrad, 106 p.Google Scholar
Veis, A. F. 1984. Microfossilii iz verhnego rifeya Turuhanskogo raiona (Upper Riphean microfossils from the Turukhansk Uplift). Paleontologicheskii zhurnal, 2:102108.Google Scholar
Veis, A. F. 1988. Microfossils in the Riphean and Vendian stratigraphy of the Uchuro-Maya and Turukhansk regions of Siberia. lzvestiya Akademii Nauk SSSR, Seria Geologicheskaya, 5:4764 (In Russian).Google Scholar
Veis, A. F., and Petrov., P. Yu. 1994a. Zavisimost’ sistematicheskogo raznoobrazia kompleksov organostennykh mikrofossilii rifeya Sibiri ot uslovii ih formirovanya (Dependence of the Riphean organic walled microfossils systematic diversity on conditions of their environment in Siberia). Ekosistemnye Perestroiki I Evolyutsiya Biosfery, vypusk 1 (Ecosystem restructures and the evolution of biosphere), Moscow Nedra, 1:3242.Google Scholar
Veis, A. F., and Petrov., P. Yu. 1994b. The main peculiarities of the environmental distribution of microfossils in the Riphean Basins of Siberia. Stratigraphy and Geological Correlation, 2:397425.Google Scholar
Veis, A. F., and Vorobieva., N. G. 1992. Mikrofossilii rifeya i venda Anabarskogo massiva (Riphean and Vendian microfossils of the Anabar Uplift). Izvestya RAN, Seria Geologocheskaya, 1:114130.Google Scholar
Veis, A. F., Petrov, P. Yu., and Vorobieva., N. G. 1998. The Late Riphean Miroedikha microbiota from Siberia. Pt. 1. Composition and facial-ecological distribution of organic-walled microfossils. Stratigraphy and Geological Correlation, 6:440461.Google Scholar
Veizer, J., Plumb, K. A., Clayton, R. N., Hinton, R. W., and Grotzinger., J. P. 1992. Geochemistry of Precambrian carbonates v. Late Palaeoproterozoic seawater. Geochimica et Cosmochimica Acta 56:24872501.CrossRefGoogle Scholar
Vidal, G., and Knoll., A. H. 1983. Proterozoic plankton. Geological Society of America, Memoir, 161:265277.CrossRefGoogle Scholar
Wettstein, F. V. 1924. Handbuch der Systematischer Botanik (third edition). Franz Deutike, Leipzig, Band 1, 1017 p.Google Scholar
Woese, C., and Fox., G. 1977. Phylogenetic structure of the prokaryotic domain. Proceedings, National Academy of Sciences, U.S.A., 745088–5090.Google Scholar
Yan, Y., and Liu., G. 1992. Discovery of acanthomorphic acritarchs from the Baicaoping Formation in Yongli, Shanxi, and its geological significance. Acta Micropalaeontologica Sinica, 9:278281.Google Scholar
Xiao, S., Knoll, A. H., Kaufman, A. J., Yun, Zhang, and Leiming, Yin. 1997. Integrated biostratigraphy, chemostratigraphy, and carbonate petrology of Mesoproterozoic successions on the North China Platform: implications for the early diversification of eukaryotes. Precambrian Research, 84:197220.CrossRefGoogle Scholar
Yankauskas, T. V., Hermann, T. N., Mikhailova, N. S., Sergeev, V. N., Abduazimova, Z. M., Belova, M. Yu., Burzin, M. B., Veis, A. F., Volkova, N. A., Golovenok, V. K., Grigorieva, A. E., Kozlova, V. V. Kiryanov E. V., Kolosov, P. N., Kraskov, L. N., Krylov, I. N., Luchinina, V. A., Medvedeva, A. M., Ogurtsova, R. N., Pasckevitchene, L. T., Pyatiletov, V. G., Rudavskaya, V. A., Sivertcsheva, I. A., Stanevich, A. M., Trechetnicova, A. A., Faizulina, Z. H., Chepikova, I. K., Schenfil, V. Yu.', Schepeleva, E. D. and Yakschin., M. S. 1989. Mikrofossilii dokembrya SSSR (Precambrian microfossils of the USSR). Trudy Instituta Geologii i Geochronologii Dokembria SSSR Akademii Nayk, Leningrad, 188 p.Google Scholar
Zang, W., and Walter., M. R. 1992. Late Proterozoic and Cambrian microfossils and biostratigraphy, Amadeus Basin, central Australia. Association of Australian Palaeontologists, Memoir, 12:1132.Google Scholar
Yun, Zhang. 1981. Proterozoic stromatolite microfloras of the Gaoyuzhuang Formation (Early Sinian: Riphean), Hebei, China. Journal of Paleontology, 55:485506.Google Scholar
Yun, Zhang., Yin, Leiming, Xiao, S., and Knoll., A. H. 1998. Permineralized Fossils from the Terminal Proterozoic Doushantou Formation, South China. Paleontological Society Memoir, 50:152.Google Scholar