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Shale-Facies Microfossils from the Proterozoic Bylot Supergroup, Baffin Island, Canada

Published online by Cambridge University Press:  11 August 2017

H. J. Hofmann  and
G. D. Jackson
H. J. Hofmann
Affiliation:
Department of Geology, University of Montreal, Box 6128, Station A, Montreal, Quebec H3C 3J7, Canada
G. D. Jackson
Affiliation:
Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario K1A 0E8, Canada
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Abstract

Organic-walled microfossils are reported from the Borden Rift Basin of northern Baffin Island and Bylot Island. The diverse assemblage, obtained by palynological acid maceration, comprises 39 taxa and occurs in fine-grained siliciclastic and carbonate units from all but the two lowermost formations of the Bylot Supergroup; their age is bracketed between 1,270 and 750 Ma. Of 307 samples analyzed from all parts of the basin, 133 yielded identifiable remains. The microbiota comprises the following taxa: Siphonophycus septatum, S. robustum, S. rugosum n. comb., S. kestron, S. capitaneum, Pellicularia tenera, Polythrichoides lineatus, Obruchevella valdaica, Karamia? sp., opaque filaments, Oscillatoriopsis spp., Palaeolyngbya sp., Arctacellularia tetragonala n. comb., A. ellipsoidea, Chlorogloeaopsis contexta n. comb., C. kanshiensis n. comb., Navifusa bacillaris n. comb., N. majensis, N. actinomorpha n. comb., Leiosphaeridia minutissima, L. tenuissima, L. crassa, L. jacutica, L. ternata, Lophosphaeridium granulatum, Valeria lophostriata, Pterospermopsimorpha insolita, Eomicrocystis elegans, E. malgica, Symplassosphaeridium spp., Synsphaeridium spp., Satka squamifera, Satka spp., Coneosphaera arctica n. sp., Coneosphaera sp., Spumosina rubiginosa, and Fabiformis baffinensis n. sp. The taxon Palaeocalothrix divaricatus, present in some macerates, is possibly a modern fungal contaminant. Abundance and taxonomic diversity varies considerably between formations and environments, with the Arctic Bay Formation exhibiting the greatest productivity and species diversity of the seven formations studied, and the transgressive muddy shelf deposits being the most productive of the 11 environments recognized. This microfossil assemblage of predominantly planktonic species has distinctive taxa in common with Middle to Late Riphean sequences in Siberia (Lakhanda and Miroedikha Groups, ca. 950 to 850 Ma), the lower part of the Thule Group (< 1,270 Ma) in northwest Greenland, the Fury and Hecla Group in western Baffin Island, and taxa reported from the upper part of the Bushimay Supergroup in Zaire. On the other hand, some elements in the Bylot Supergroup are more characteristic of Vendian beds on the Russian Platform, indicating longer stratigraphic ranges for such taxa than previously thought. The compositional similarity between the Borden Basin and Siberian sequences supports palinspastic reconstructions juxtaposing Siberia and Laurentia during the middle to late Proterozoic, and the opening of the Poseidon Ocean.

Type
Research Article
Information
Journal of Paleontology , Volume 68 , Issue S37: Paleontological Society Memoir 37. Shale-facies microfossils from the Proterozoic Bylot Supergroup, Baffin Island, Canada , July 1994 , pp. 1 - 35
Copyright
Copyright © 1994, The Paleontological Society 

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References

Andreeva, E. M. 1966. Opisanie iskopaemykh spor predstaviteley Bryophyta, Lycopsida, Sphenopsida, Filicinae i rastitelnykh mikrofossiliy neyasnogo sistematicheskogo polozheniya, p. 114–135. Rastitelnye mikrofossilii neyasnogo sistematicheskogo polozheniya. In Pokorovskaya, I. M. (ed.), Paleopalinologiya, Volume 1. VSEGEI, Trudy, volume 141, Nedra, Leningrad.Google Scholar
Aseeva, E. A. 1974. O spirale-i kol'tzevidnykh obrazovaniyakh v verkhnedokembriyskikh otlozheniyakh Podolii. [On the spiral- and ring-formed structures in the deposits of the Upper Precambrian of Podolia.] Paleontologicheskiy Sbornik, 1974 (11):95–98 [in Russian, with English summary].Google Scholar
Aseeva, E. A. 1976. Mikrofitofossilii i vodorosli iz otlozheniy verkhnego dokembriya Volyno–Podolii [Microfossils and algae from the Upper Precambrian of Volyn–Podolia], p. 40–63. In Shul'ga, P. L. (ed.), Paleontologiya i stratigrafiya verkhnego dokembriya i nizhnego paleozoya yugo-zapada vostochno evropeyskoy platformy. [Paleontology and stratigraphy of the Upper Precambrian and Lower Paleozoic of the south-western part of the East European Platform.] [In Russian.] Naukova Dumka, Kiev.Google Scholar
Aseeva, E. A. 1983. Nemineralizovannye makrofitofossilii, p. 96–101. In Velikanov, V. A., Aseeva, E. E., and Fedonkin, M. A., Vend Ukrainy. Naukova Dumka, Kiev, 163 p.Google Scholar
Balme, B. E. 1979. Palynology of Permian–Triassic boundary beds at Kap Stosch, East Greenland. Meddelelser on Grønland, 200(6), 37 p.Google Scholar
Barghoorn, E. S., and Tyler, S. A. 1965. Microorganisms from the Gunflint chert. Science, 147:563–577.Google Scholar
Baudet, D., Aitken, J. D., and Vanguestaine, M. 1989. Palynology of uppermost Proterozoic and lowermost Cambrian formations, central Mackenzie Mountains, northwestern Canada. Canadian Journal of Earth Sciences, 26:129–148.Google Scholar
Blackadar, R. G. 1970. Precambrian geology, northwestern Baffin Island, District of Franklin. Geological Survey of Canada, Bulletin 91, 89 p.Google Scholar
Briggs, D. E. G., and Williams, S. H. 1981. The restoration of flattened fossils. Lethaia, 14:157–164.Google Scholar
Buchan, K. L., and Halls, H. C. 1990. Paleomagnetism of Proterozoic mafic dyke swarms of the Canadian Shield, p. 209–230. In Parker, P. C. R. and Decker, D. H. (eds.), Mafic Dykes and Emplacement Mechanisms. Pub. No. 23, International Geological Correlation Program, Project 257.Google Scholar
Butterfield, N. J., and Chandler, F. W. 1992. Palaeoenvironmental distribution of Proterozoic microfossils, with an example from the Agu Bay Formation, Baffin Island. Palaeontology, 35:943–957.Google Scholar
Chepikova, I. K. 1971. Akritarkhi vendskikh otlozheniy Volgo-Ural'skoy neftegazonostnoy oblasti i ikh znachenie dlya stratigrafii, p. 60–92. In Spores and pollen in oils and deposits of oil- and gas-bearing regions of the USSR. In 3rd International Palynological Conference, Novosibirsk, 1971. Nauka, Moscow.Google Scholar
Christie, K. W., and Fahrig, W. F. 1983. Paleomagnetism of the Borden dykes of Baffin Island and its bearing on the Grenville Loop. Canadian Journal of Earth Sciences, 20:275–289.CrossRefGoogle Scholar
Combaz, A., Lange, F. W., and Pansart, J. 1967. Les “Leiofusidae” Eisenack, 1938. Review of Palaeobotany and Palynology, 1:291–307.Google Scholar
Cramer, F. H., and Díez, M. D. C. R. 1979. Lower Paleozoic acritarchs. Palinología, 1:17–160.Google Scholar
Dawes, P. R., and Vidal, G. 1985. Proterozoic age of the Thule Group: new evidence from microfossils. Grønlands Geologiske Undersøgelse, Report 125:22–28.CrossRefGoogle Scholar
Diver, W. L., and Peat, C. J. 1979. On the interpretation and classification of Precambrian organic-walled microfossils. Geology, 7:401–404.Google Scholar
Dostal, J., Jackson, G. D., and Gally, A. 1989. Geochemistry of Neohelikian Nauyat plateau basalts, Borden Rift Basin, northwestern Baffin Island, Canada. Canadian Journal of Earth Sciences, 26:2214–2223.Google Scholar
Downie, C. 1963. “Hystrichospheres” (acritarchs) and spores of the Wenlock Shales (Silurian) of Wenlock, England. Palaeontology, 6:625–652.Google Scholar
Downie, C., Evitt, W. R., and Sarjeant, W. A. S. 1963. Dinoflagellates, hystrichospheres, and the classification of the acritarchs. Stanford University Publications, Geological Sciences, 7:3–16.Google Scholar
Downie, C., and Sarjeant, W. A. S. 1963. On the interpretation and status of some hystrichosphere genera. Palaeontology, 6:83–96.Google Scholar
Downie, C., and Sarjeant, W. A. S. 1965. Bibliography and index of fossil dinoflagellates and acritarchs. Geological Society of America, Memoir 94, 180 p. [Cover date 1964; issue date 1965.] Google Scholar
Eisenack, A. 1958. Tasmanites Newton 1875 und Leiosphaeridia n.g. als Gattungen der Hystrichosphaeridea. Palaeontographica, Abteilung A, 110:1–19.Google Scholar
Eisenack, A. 1965. Mikrofossilien aus dem Silur Gotlands. Hystrichosphären, Problematika. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 122:257–274.Google Scholar
Eisenack, A., Cramer, F. H., and Cramer, M. D. C. R. 1979. Katalog der fossilen Dinoflagellaten, Hystrichosphären und verwandten Mikrofossilien. volume 3, Acritarcha, Part 3, 533 p.Google Scholar
Evitt, W. R. 1963. A discussion and proposals concerning fossil dinoflagellates, hystrichospheres, and acritarchs, I, II. National Academy of Sciences U.S.A., Proceedings, 47:158–164, 298–302.Google Scholar
Fahrig, W. F. 1987. The tectonic setting of continental mafic dyke swarms: failed arm and early passive margin, p. 331–348. In Halls, H. C. and Fahrig, W. F. (eds.), Mafic Dyke Swarms. Geological Association of Canada, Special Paper 34.Google Scholar
Fahrig, W. F., Christie, K. W., and Jones, D. L. 1981. Paleomagnetism of the Bylot Basins: evidence for Mackenzie continental tensional tectonics, p. 302–312. In Campbell, F. H. A. (ed.), Proterozoic Basins of Canada. Geological Survey of Canada, Paper 81-10.Google Scholar
Fensome, R. A., Williams, G. L., Barss, M. S., Freeman, J. M., and Hill, J. M. 1990. Acritarchs and fossil prasinophytes: an index to genera, species and infraspecific taxa. American Association of Stratigraphic Palynologists Foundation, Contributions Series No. 25, 771 p.Google Scholar
Galley, A. G., Jackson, G. D., and Iannelli, T. R. 1983. Neohelikian subaerial basalts with ocean-floor type chemistry, northwestern Baffin Island. Geological Association of Canada, Program with Abstracts, 8:A25.Google Scholar
Geldsetzer, H. 1973a. Syngenetic dolomitization and sulfide mineralization, p. 115–127. In Amstutz, G. G. and Bernard, A. J. (eds.), Ores in Sediments. Springer-Verlag, Berlin, Heidelberg, New York, London.Google Scholar
Geldsetzer, H. 1973b. The tectono-sedimentary development of an algal-dominated Helikian succession on northern Baffin Island, N.W.T., p. 99–126. In Aitken, J. D. and Glass, D. J. (eds.), Geology of the Canadian Arctic. Geological Association of Canada–Canadian Society of Petroleum Geologists, Symposium Proceedings.Google Scholar
German, T. N. [Hermann, T. N.]. 1974. Nakhodki massovykh skopleniy trikhomov v rifee, p. 6–10. In Timofeev, B. V. (ed.), Mikrofitofossilii proterozoya i rannego paleozoya SSSR. Nauka, Leningrad.Google Scholar
German, T. N. [Hermann, T. N.]. 1981a. Nitchatye mikroorganizmy lakhandinskoy svity reki Mai. [Filamentous microorganisms in the Lakhanda Formation of the Maya River.] Paleontologicheskiy Zhurnal, 1981, no. 2:126–131. [English version 1982, p. 100–107.] Google Scholar
German, T. N. [Hermann, T. N.]. 1981b. Nakhodki nitchatykh vodorosley v miroyedikhskoy svite verkhnego dokembriya. [Filamentous algae from the Miroyedikha Formation of the Upper Precambrian.] Paleontologicheskiy Zhurnal, 1981, no. 4:118–122. [English version 1982, p. 111–116.] Google Scholar
German, T. N. [Hermann, T. N.]. 1990. Organicheskiy mir milliard let nazad [Organic world billion year ago.] [In Russian and English.] Academy of Sciences of the USSR, Institute of Precambrian Geology and Geochronology, Leningrad, 50 p.Google Scholar
Golovenok, V. K., and Belova, M. Yu. 1984. Rifeyskie mikrobioty v kembriyakh iz billyakhskoy serii Anabarskogo podnyatya. [Riphean microbiota in cherts of the Billyakh Group on the Anabar Uplift.] Paleontologicheskiy Zhurnal, 1984, no. 4:23–32. [English translation: Paleontological Journal, 1984, p. 20–30.] Google Scholar
Golovenok, V. K., and Belova, M. Yu. 1986. Rifeyskaya mikroflora v kremnyakh iz malginskoy svity Yudomo-Mayskogo progiba. [The Riphean microflora in the cherts from the Malgin Formation in the Yudoma-Maya basin.] Paleontologicheskiy Zhurnal, 1986, no. 2:92–96. [English translation: Paleontological Journal, 1986, p. 85–90.] Google Scholar
Gundersen, J. K., Jørgensen, B. B., Larsen, E., and Jannasch, H. W. 1992. Mats of giant sulphur bacteria on deep-sea sediments due to fluctuating hydrothermal flow. Nature, 360:454–456.Google Scholar
Harris, T. M. 1974. Williamsoniella lignieri: its pollen and the compression of spherical pollen grains. Palaeontology, 17:125–148.Google Scholar
Hoffman, P. F. 1989. Precambrian geology and tectonic history of North America. Chapter 16, p. 447–512. In Bally, A. W. and Palmer, A. R. (eds.), The Geology of North America—An Overview. The Geology of North America, volume A. Geological Society of America, Boulder, Colorado.Google Scholar
Hoffman, P. F. 1991. Did the breakout of Laurentia turn Gondwanaland inside-out? Science, 252:1409–1412.Google Scholar
Hofmann, H. J. 1976. Precambrian microflora, Belcher Islands, Canada: significance and systematics. Journal of Paleontology, 50:1040–1073.Google Scholar
Hofmann, H. J. 1984. Organic-walled microfossils from the latest Proterozoic and earliest Cambrian of the Wernecke Mountains, Yukon. Geological Survey of Canada, Paper 84-1B:285–297.Google Scholar
Hofmann, H. J. 1990. Precambrian time units and nomenclature—the geon concept. Geology, 18:340–341.Google Scholar
Hofmann, H. J., and Jackson, G. D. 1991. Shelf-facies microfossils from the Uluksan Group (Proterozoic Bylot Supergroup), Baffin Island, Canada. Journal of Paleontology, 65:361–382.Google Scholar
Horodyski, R. J. 1980. Middle Proterozoic shale-facies microbiota from the lower Belt Supergroup, Little Belt Mountains, Montana. Journal of Paleontology, 54:649–663.Google Scholar
Iannelli, T. R. 1992. Revised stratigraphy of the Late Proterozoic Bylot Supergroup, northern Baffin Island, Arctic Canada: implications for the evolution of Borden Basin. Unpubl. Ph.D dissertation, University of Western Ontario, London, Ontario, 412 p.Google Scholar
Irving, E. 1979. Paleopoles and paleolatitudes of North America and speculations about displaced terrains. Canadian Journal of Earth Sciences, 16:669–694.Google Scholar
Jackson, G. D. 1986. Notes on Proterozoic Thule Group, northern Baffin Bay. Current Research, Part A, Geological Survey of Canada, Paper 86-1A:541–552.Google Scholar
Jackson, G. D., Davidson, A., and Morgan, W. C. 1975. Geology of the Pond Inlet map-area, Baffin Island, District of Franklin. Geological Survey of Canada, Paper 74-25, 33 p., and Map 1396A, colored, with expanded legend, 1:250,000.Google Scholar
Jackson, G. D., and Iannelli, T. R. 1981. Rift-related cyclic sedimentation in the Neohelikian Borden Basin, northern Baffin Island, p. 269–302. In Campbell, F. H. A. (ed.), Proterozoic Basins of Canada. Geological Survey of Canada, Paper 81-10.Google Scholar
Jackson, G. D., and Iannelli, T. R. 1989. Neohelikian reef complexes, Borden Rift Basin, northwestern Baffin Island, p. 55–63. In Geldsetzer, H. H. J., James, N. P., and Tebbutt, G. E. (eds.), Reefs, Canada and Adjacent Area. Canadian Society of Petroleum Geologists, Memoir 13.Google Scholar
Jackson, G. D., Iannelli, T. R., Knight, R. D., and Lebel, D. 1985. Neohelikian Bylot Supergroup of Borden Rift Basin, northwestern Baffin Island, District of Franklin. Current Research, Part A, Geological Survey of Canada, Paper 85-1A:639–649.Google Scholar
Jackson, G. D., and Sangster, D. F. 1987. Geology and resource potential of a proposed national park, Bylot Island and northwest Baffin Island, Northwest Territories. Geological Survey of Canada, Paper 87-17, 31 p. and Map at 1:250,000.Google Scholar
Kazmierczak, J. 1975. Colonial Volvocales (Chlorophyta) from the Upper Devonian of Poland and their palaeoenvironmental significance. Acta Palaeontologica Polonica, 20:73–83.Google Scholar
Kazmierczak, J. 1976. Devonian and modern relatives of the Precambrian Eosphaera: possible significance for early eukaryotes. Lethaia, 9:39–50.Google Scholar
Kazmierczak, J. 1979. The eukaryotic nature of Eosphaera-like ferriferous structures from the Precambrian Gunflint Iron Formation, Canada: a comparative study. Precambrian Research, 9:1–22.CrossRefGoogle Scholar
Kazmierczak, J. 1981. The biology and evolutionary significance of Devonian volvocaceans and their Precambrian relatives. Acta Palaeontologica Polonica, 26:299–337.Google Scholar
Keller, B. M. (ed.). 1982. Stratotip rifeya. [Stratotype of Riphean.] Akademiya Nauk SSSR, Geological Institute, Transactions 368, 175 p. [In Russian.] Google Scholar
Kirjanov, V. V. [Kir'yanov, V. V.] 1974. Novye akritarkhi iz kembriyskikh otlozheniy Volyni. [New acritarchs from the Volynian Cambrian.] Paleontologicheskiy Zhurnal, 1974, no. 2:117–129. [English translation, Paleontological Journal, 1974, p. 225–236.] 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, 36:81–94.CrossRefGoogle Scholar
Knight, R. D., and Jackson, G. D. 1994. Sedimentology and stratigraphy of the Mesoproterozoic Elwin Subgroup (Aqigilik and Sinasiuvik Formations), uppermost Bylot Supergroup, Borden Rift Basin, northern Baffin Island. Geological Survey of Canada Bulletin 455, 43 p.Google Scholar
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, 65:531–570.Google Scholar
Kolosov, P. N. 1984. Pozdnedokembriyskie mikroorganizmy vostoka Sibirskoy platformy. [Late Precambrian microorganisms from the East Siberian Platform.] Akademiya Nauk SSSR, Yakutskiy Filial, Institut Geologii, Yakutsk, 84 p.Google Scholar
LeCheminant, A. N., and Heaman, L. M. 1991. U-Pb ages for the 1.27 Ga Mackenzie igneous events, Canada: support for a plume initiation model. Geological Association of Canada–Mineralogical Association of Canada Joint Annual Meeting with Society of Economic Geologists, Program with Abstracts, 16:A73.Google Scholar
Lindgren, S. 1982. Algal coenobia and leiospheres from the Upper Riphean of the Turukhansk region, eastern Siberia. Stockholm Contributions in Geology, 38(3):35–45.Google Scholar
Lopukhin, A. S. 1972. Toroformis—novyy rod akritarkh iz otlozheniy venda i kembriya Tyan'-Shanya. [Toroformis—a new acritarch genus from Vendian and Cambrian deposits in the Tien-Shan.] Izvestiya Vysshikh Uchebnykh Zavedeniy. Geologiya i Razvedka, 1972, no. 9:141–142.Google Scholar
Luo, Q.-L. 1991. New data on the microplants from Changlongshan Formation of Upper Precambrian in western Yanshan Range. Tianjin Institute of Geology and Mineral Resources, Bulletin 25:107–118 [in Chinese, with English abstract].Google Scholar
Maithy, P. K. 1975. Micro-organisms from the Bushimay System (Late Precambrian) of Kanshi, Zaire. The Palaeobotanist, 22:133–149.Google Scholar
Maithy, P. K., and Shukla, M. 1977. Microbiota from the Suket Shales, Ramapura, Vindhyan System (Late Precambrian), Madhya Pradesh. The Palaeobotanist, 23:176–188.Google Scholar
Mankiewicz, C. 1992. Obruchevella and other microfossils in the Burgess Shale: preservation and affinity. Journal of Paleontology, 66:717–729.CrossRefGoogle Scholar
Mendelson, C. V., Bauld, J., Horodyski, R. J., Lipps, J. H., Moore, T. B., and Schopf, J. W. 1992. Proterozoic and selected Early Cambrian microfossils: prokaryotes and protists. Chapter 5, p. 175–244. In Schopf, J. W. and Klein, C. (eds.), The Proterozoic Biosphere—A Multidisciplinary Study. Cambridge University Press, Cambridge.CrossRefGoogle 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, 56:42–83.Google Scholar
Mendelson, C. V., and Schopf, J. W. 1992. Proterozoic and selected Early Cambrian microfossils and microfossil-like objects. Chapter 22, p. 865–951. In Schopf, J. W. and Klein, C. (eds.), The Proterozoic Biosphere—A Multidisciplinary Study. Cambridge University Press, Cambridge.Google Scholar
Moryakin, V. B. 1990. Mikrofitofossilii chingasanskoy serii Eniseyskogo kryazha [Microfossils from the Chingasan Group of the Yenisei Uplift], p. 156–168. In Khomentovskiy, V. V., Gibsher, A. S., and Karlova, G. A. (eds.), Pozdniy dokembriy i ranniy paleozoy Sibiri. Voprosy regional'noy stratigrafii. Sbornik Nauchnykh Trudov. Akademiya Nauk SSSR, Sibirskoye Otdelenie, Institut Geologii i Geofiziki, Novosibirsk.Google Scholar
Naumova, S. N. 1949. Spory nizhnego kembriya. [Spores from the Lower Cambrian.] Izvestiya Akademiy Nauk, 1949, no. 4:49–56.Google Scholar
Naumova, S. N. 1968. Zonal'nye kompleksy rastitel'nykh mikrofossiliy dokembriya i nizhnego kembriya Evrazii i ikh stratigraficheskoe znachenie. [Zonal assemblages of Precambrian and Lower Cambrian plant microfossils of Eurasia and their stratigraphic significance.] Mezhdunarodnyy Geologicheskiy Kongress, XXIII Sessiya, Doklady Sovetskikh Geologov, p. 30–39.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, 58:738–772.Google Scholar
Olson, R. A. 1977. Geology and genesis of zinc-lead deposits within a late Precambrian dolomite, northern Baffin Island, N.W.T. Unpubl. Ph.D. dissertation, University of British Columbia, Vancouver, 371 p.Google Scholar
Olson, R. A. 1984. Genesis of paleokarst and strata-bound zinc-lead sulfide deposits in a Proterozoic dolostone, northern Baffin Island, Canada. Economic Geology, 79:1059–1103.Google Scholar
Pemberton, S. G., and Frey, R. W. 1982. Trace fossil nomenclature and the Planolites-Palaeophycus dilemma. Journal of Paleontology, 56:843–881.Google Scholar
Pesonen, L. J., Torsvik, T. H., Elming, S.-Å., and Bylund, G. 1989. Crustal evolution of Fennoscandia—palaeomagnetic constraints. Tectonophysics, 162:27–49.Google Scholar
Pyatiletov, V. G. 1980a. O nakhodkakh mikrofossiliy roda Navifusa v Lakhandinskoy svite. Paleontologicheskiy Zhurnal, 1980(3):143–145.Google Scholar
Pyatiletov, V. G. 1980b. Mikrofossilii dashkinskoy svity Eniseyskogo kryazha. [Microfossils from the Dashka Suite in the Yenisei Ridge region.] Akademiya Nauk SSSR, Doklady, 255(2):453–454. [English translation p. 246–249.] Google Scholar
Pyatiletov, V. G. 1980c. Mikrofossilii iz pozdnedokembriyskikh otlozheniy, vskrytykh Vanavarskoy skvazhnoy (zapadnaya chast' Sibirskoy platformy), p. 71–76. In Khomentovskiy, V. V., Pyatiletov, V. G., and Karlova, G. A. (eds.), Novye dannye po stratigrafii pozdnego dokembriya zapada Sibirskoy platformy i ee skladchatogo obramleniya. Sbornik Nauchnykh Trudov, Akademiya Nauk SSSR, Sibirskoe Otdeleniye, Novosibirsk.Google Scholar
Pyatiletov, V. G. 1986. Mikrofitofossilii pozdnego dokembriya Katangskoy sedloviny i sopredel'nykh territoriy (zapadnaya chast' Sibirskoy platformy), p. 129–161. In Khomentovskiy, V. V. and Shenfil', V. Yu. (eds.), Pozdniy dokembriy i ranniy paleozoy Sibiry. Stratigrafiya i Paleontologiya. Akademiya Nauk SSSR, Novosibirsk.Google Scholar
Pyatiletov, V. G. 1988. Mikrofossilii pozdnego dokembriya Uchuro-Mayskogo rayona, p. 47–104. In Khomentovskiy, V. V. et al. (eds.), Pozdniy dokembriy i ranniy paleozoy Sibiri, rifey i vend. Sbornik Nauchnykh Trudov, Akademiya Nauk SSSR, Sibirskoye Otdelenie, Novosibirsk.Google Scholar
Pyatiletov, V. G., and Karlova, G. A. 1980. Verkhnerifeyskiy kompleks rastitel'nykh mikrofossiliy Eniseyskogo kryazha [Upper Riphean complex of plant microfossils of the Yenisei Uplift], p. 56–71. In Khomentovskiy, V. V., Pyatiletov, V. G., and Karlova, G. A. (eds.), Novye dannye po stratigrafii pozdnego dokembriya zapada Sibirskoy platformy i ee skladchatogo obramleniya. Sbornik Nauchnykh Trudov, Akademiya Nauk SSSR, Sibirskoye Otdelenie, Novosibirsk.Google Scholar
Pykhova, N. G. 1973. Acritarchs of Precambrian sections of Southern Urals, Siberia, Eastern European Platform and their stratigraphic significance, p. 15–17. In Vozzhennikova, T. F. and Timofeev, B. V. (eds.), Microfossils of the oldest deposits. Proceedings of the 3d International Palynological Congress, Moscow, Nauka [in Russian, with English summary].Google Scholar
Reitlinger, E. A. 1948. Kembriyskie foraminifery Yakutii. [Cambrian foraminiferans of Yakutia.] Moskovskoe Obshchestvo Ispytatelei Prirody, Geological Series, Bulletin, 23(2):77–81.Google Scholar
Sangster, D. F. 1981. Three potential sites for the occurrence of stratiform shale-hosted lead–zinc deposits in the Canadian Arctic. Current Research, Part A, Geological Survey of Canada, Paper 81-1A:1–8.Google Scholar
Schopf, J. W. 1968. Microflora of the Bitter Springs Formation, Late Precambrian, central Australia. Journal of Paleontology, 42:651–688.Google Scholar
Schopf, J. W. 1992. Proterozoic prokaryotes: affinities, geological distribution, and evolutionary trends. Chapter 5.4, p. 195–218. In Schopf, J. W. and Klein, C. (eds.), The Proterozoic Biosphere—A Multidisciplinary Study. Cambridge University Press, Cambridge.Google Scholar
Shenfil', V. Yu., Didenko, A. N., Karlova, G. A., and Pyatiletov, V. G. 1982. Problemy stratigraficheskogo raschleneniya i mezhregional'noy korrelyatzii dokembriyskikh otlozheniy Chadobetzkogo podnyatniya, p. 50–72. In Khomentovskiy, V. V., Yakshin, M. S., and Bragin, S. S. (eds.), Novye dannye po stratigrafii pozdnego dokembriya Sibiri. Sbornik Nauchnykh Trudov, Novosibirsk.Google Scholar
Shepeleva, E. D. 1974. Stratigraficheskoe raschlenenie vendskikh otlozheniy tzentralnykh rayonov Russkoy platformy po akritarkham, p. 13–23. In Vozzhennikova, T. F., Timofeev, B. V., and Sheshegova, L. I. (eds.), Mikrofossilii SSSR. [Microfossils USSR.] Transactions of the Institute of Geology and Geophysics, Issue 81, Nauka, Siberian Branch, Novosibirsk.Google Scholar
Sokolov, B. S., and Ivanovskiy, A. B. (eds.). 1985. Vendskaya sistema. [The Vendian System.] volume 1. Nauka, Moscow, 222 p.Google Scholar
Sokolov, B. S., and Iwanowski, A. B. [Ivanovskiy, A. B.] (eds.). 1990. The Vendian System. Volume 1 Paleontology. [Translation of “Vendskaya sistema 1,” Sokolov, B. S. and Ivanovskiy, A. V. (eds.), 1985.] Springer-Verlag, Berlin, Heidelberg, New York, London, Paris, Tokyo, Hong Kong, Barcelona, 383 p.Google Scholar
Staplin, F. L. 1961. Reef-controlled distribution of Devonian microplankton in Alberta. Palaeontology, 14:1–11.Google Scholar
Tappan, H. 1976. Possible eucaryotic algae (Bangiophycidae) among early Proterozoic microfossils. Geological Society of America Bulletin, 87:633–639.Google Scholar
Timofeev, B. V. 1959. Drevneyshaya flora Pribaltiki i ee stratigraficheskoe znachenie. Trudy Vsesoyuznogo Neftyanogo Nauchno-Issledovatel'skogo Geologorazvedochnogo Instituta (VNIGRI), volume 129, 320 p.Google Scholar
Timofeev, B. V. 1966. Mikropaleofitologicheskoe issledovanie drevnikh svit. Akademiya Nauk SSSR, Nauka, Moscow, 147 p. [English translation dated 1974, by British Lending Library, 214 p.] Google Scholar
Timofeev, B. V. 1969. Sferomorfidy proterozoya. [Proterozoic spheromorphs.] Nauka, Leningrad, 146 p.Google Scholar
Timofeev, B. V. 1973. Mikrofitofossilii dokembriya Ukrainy. [Microfossils from the Precambrian of Ukraine.] Akademiya Nauk SSSR, Institut Geologii i Geokhronologii Dokembriya, Leningrad, 58 p. [in Russian].Google Scholar
Timofeev, B. V. 1979. Mikrofitofossilii pechengskoy serii [Microfossils from the Pechenga Group], p. 119–120. In Sokolov, B. S. (ed.), Paleontologiya dokembriya i rannego kembriya. Nauka, Leningrad.Google Scholar
Timofeev, B. V. 1982. Mikrofitofossilii rannego dokembriya. Nauka, Leningrad, 128 p.Google Scholar
Timofeev, B. V., German, T. N. [Hermann], T. N., and Mikhaylova, N. S. 1976. Mikrofitofossilii dokembriya, kembriya i ordovika. [Microfossils from the Precambrian, Cambrian, and Ordovician.] Nauka, Leningrad, 107 p.Google Scholar
Turner, R. E. 1984. Acritarchs from the type area of the Ordovician Caradoc Series, Shropshire, England. Palaeontographica, Abteilung B, 190(4–6):87–157.Google Scholar
Tynni, R., and Donner, J. 1980. A microfossil and sedimentation study of the Late Precambrian formation of Hailuoto, Finland. Geological Survey of Finland, Bulletin 311, 27 p.Google Scholar
Tynni, R., and Uutela, A. 1984. Microfossils from the Precambrian Muhos Formation in western Finland. Geological Survey of Finland, Bulletin 330, 38 p.Google Scholar
Veys, A. F. [Weiss, A. F.], Kozlova, E. V., and Vorobeva, N. G. 1990. Organostennye mikrofossilii tipovogo razreza rifeya (yuzhnyy Ural). [Organic-walled microfossils from the Riphean type section (Southern Urals).] Akademiya Nauk SSSR, Izvestiya, Seriya Geologicheskaya, 1990(9):20–36.Google Scholar
Vidal, G. 1981. Micropalaeontology and biostratigraphy of the Upper Proterozoic and Lower Cambrian sequence in East Finnmark, northern Norway. Norges geologiske undersøkelse, No. 362, 53 p.Google Scholar
Vidal, G., and Dawes, P. R. 1980. Acritarchs from the Proterozoic Thule Group, north-west Greenland. Geological Survey of Greenland, Report No. 100:24–29.Google Scholar
Vidal, G., and Ford, T. D. 1985. Microbiotas from the Late Proterozoic Chuar Group (northern Arizona) and Uinta Mountain Group (Utah) and their chronostratigraphic implications. Precambrian Research, 28:349–389.Google Scholar
Vidal, G., and Knoll, A. H. 1983. Proterozoic plankton. Geological Society of America, Memoir 161:265–277.Google Scholar
Vidal, G., and Siedlecka, A. 1983. Planktonic, acid-resistant microfossils from the Upper Proterozoic strata of the Barents Sea region of Varanger Peninsula, East Finnmark, northern Norway. Norges geologiske undersøkelse, No. 382:45–79.Google Scholar
Volkova, N. A. 1981. Akritarkhi verkhnego dokembriya yugo-vostochnoy Sibiri (Ust'kirbinskaya svita). [Acritarchs from the Upper Precambrian of southeastern Siberia (Ust'kirba Formation).] Byulleten' Moskovskogo Obshchestva, Ispytateley Prirody, Otdel Geologicheskiy, 56(4):66–75.Google Scholar
Xing, Y.-SH. et al. 1985. Late Precambrian palaeontology of China. Geological Publishing House, Beijing. Ministry of Geology and Mineral Resources, Geological Memoirs, Series 2, No. 2, 288 p. [in Chinese].Google Scholar
Xing, Y.-SH. et al., and Liu, K-CH. 1978. Sinian microplant and algal fossils, p. 109–126. In Stratigraphy and paleontology, Sinian to Permian, East Gorge area. Shanshia Stratigraphic Division, Hubei Geological Survey [in Chinese].Google Scholar
Xu, ZH-L. 1984. Investigation on the procaryotic microfossils from the Gaoyuzhuang Formation, Jixian, North China. Acta Botanica Sinica, 26:216–222, 312–319 [in Chinese, with English summary].Google Scholar
Yakshin, M. S. 1991. Vodoroslevaya mikrobiota nizhnego rifeya Anabarskogo podnyatnya (Kotuykanskaya svita). Akademiya Nauk SSSR, Sibirskoe Otdelenie, Trudy Instituta Geologii i Geofiziki, No. 768, Nauka, Novosibirsk, 60 p.Google Scholar
Yankauskas, T. V. [Jankauskas, T. V.]. 1979a. Nizhnerifeyskie microbioty Yuzhnogo Urala. [Lower Riphean microbiotas of the Southern Urals.] Akademiya Nauk SSSR, Doklady, 247(6):1465–1467.Google Scholar
Yankauskas, T. V. [Jankauskas, T. V.]. 1979b. Srednerifeyskie microbiota Yuzhnogo Urala i Bashkirskogo Priural'ya. [Lower Riphean microbiotas of the Southern Urals.] Akademiya Nauk SSSR, Doklady, 248(1):190–193. [English translation p. 51–54.] Google Scholar
Yankauskas, T. V. [Jankauskas, T. V.]. 1980a. Drevneyshiy kompleks rastitel'nykh mikrofossiliy iz venda Bashkirskogo Priural'ya (Sergeevskaya mikrobiota). Akademiya Nauk SSSR, Doklady, 250(6):1134–1136.Google Scholar
Yankauskas, T. V. [Jankauskas, T. V.]. 1980b. Novyye vodorosli iz verkhnego rifeya Yuzhnogo Urala i Priural'ya. [New algae from the Upper Riphean of the Southern Urals and the Ural forelands.] Paleontologicheskiy Zhurnal, 1980(4):107–113. [English translation in Paleontological Journal, p. 113–121.] Google Scholar
Yankauskas, T. V. [Jankauskas, T. V.]. 1982. Mikrofossilii rifeya Yuzhnogo Urala [Microfossils of the Riphean of the South Urals], p. 84–120. In Keller, B. M. (ed.), Stratotyp Rifeya—Paleontologiya paleomagnetizm. Akademiya Nauk SSSR, Transactions, 368.Google Scholar
Yankauskas, T. V. [Jankauskas, T. V.]., Mikhaylova, N. S., and German, T. N. [Hermann, T. N.]. 1987. V vsesoyuznyy kollokvium po mikrofossiliyam dokembriya SSSR. [Fifth All-Union Colloquium on Precambrian microfossils in the USSR.] Izvestiya Akademii Nauk SSSR, Seriya Geologicheskaya, 1987(9):137–139.Google Scholar
Yankauskas, T. V. [Jankauskas, T. V.]., Mikhaylova, N. S., and German, T. N. [Hermann], T. N. (eds.). 1989. Mikrofossilii dokembriya SSSR. [Precambrian microfossils of the USSR.] Nauka, Leningrad, 190 p.Google Scholar
Yin, L.-M. 1987. Microbiotas of latest Precambrian sequences in China, p. 415–522. In Nanjing Institute of Geology and Palaeontology, Academia Sinica (compii.), Stratigraphy and Palaeontology of Systemic Boundaries in China. Precambrian–Cambrian boundary. Nanjing University, Nanjing, 564 p.Google Scholar
Yin, L.-M. 1991. Late Proterozoic microfossils from the Tongjiazhuang Formation, western Shandong, China. Acta Micropalaeontologica Sinica, 8:253–269.Google Scholar
Zhang, P.-Y. 1983. Microbiota from the chert facies of Wumishan Formation, Jixian County. Tianjin Institute of Geology and Mineral Resources, Bulletin, 1983(2):207–223 [in Chinese, with English abstract].Google Scholar
Zhang, Y. 1981. Proterozoic stromatolite microfloras of the Gaoyuzhuang Formation (Early Sinian: Riphean), Hebei, China. Journal of Paleontology, 55:485–506.Google Scholar
Zhang, Y. 1985. Stromatolitic microbiota from the Middle Proterozoic Wumishan Formation (Jixian Group) of the Ming Tombs, Beijing, China. Precambrian Research, 30:277–302.Google Scholar