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Small shelly fauna from the upper Lower Cambrian Bastion and Ella Island formations, North-East Greenland

Published online by Cambridge University Press:  14 July 2015

Christian B. Skovsted*
Affiliation:
Centre for Ecostratigraphy and Palaeobiology, Department of Earth and Planetary Sciences, Macquarie University, Sydney NSW 2109, Australia,

Abstract

A diverse and well-preserved fauna of shelly fossils from the upper Lower Cambrian Bastion and Ella Island Formations of North-East Greenland contains more than 90 species. the fauna is the most diverse shelly fauna yet discovered in the Lower Cambrian of Laurentia and includes many fossils previously known only from other continental blocks. It enhances correlation of the North-East Greenland succession into Laurentia, most notably with the Browns Pond Formation of New York State, but also with other important Early Cambrian continents, in particular with Australia, Antarctica, and Siberia. A middle Dyeran age is most probable for both the Bastion and Ella Island Formation, and the rich fossil assemblage facilitates correlation with the Botoman Stage of Siberia and its equivalents. One new taxon is described, the disc-shaped problematicum Tunudiscus duovittarius n. gen. and sp.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

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References

Ahlberg, P. 1984. A Lower Cambrian trilobite fauna from Jämtland, central Scandinavian Caledonides. Geologiska Föreningens i Stockholm Förhandlingar, 105:349361.Google Scholar
Ahlberg, P., and Bergström, J. 1993. The trilobite Calodiscus lobatus from the Lower Cambrian of Scania, Sweden. Geologiska Föreningens i Stockholm Förhandlinar, 115:331334.CrossRefGoogle Scholar
Bendix-Almgreen, S. E., and Peel, J. S. 1988. Hadimopanella from the Lower Cambrian of North Greenland: Structure and affinities. Bulletin of the Geological Society of Denmark, 37:83103.Google Scholar
Bengtson, S. 1968. The problematic genus Mobergella from the Lower Cambrian of the Baltic area. Lethaia, 1:325351.Google Scholar
Bengtson, S., and Missarzhevsky, V. V. 1981. Coeloscleritophora—a major group of enigmatic Cambrian metazoans. United States Geological Survey Open File Report, 81–743:1921.Google Scholar
Bengtson, S., Conway Morris, S., Cooper, B. J., Jell, P. A., and Runnegar, B. N. 1990. Early Cambrian fossils from South Australia. Association of Australasian Palaeontologists Memoir, 9, 364 p.Google Scholar
Bergström, J., and Ahlberg, P. 1981. Uppermost Lower Cambrian biostratigraphy in Scania, Sweden. Geologiska Föreningens i Stockholm Förhandlingar, 103:193214.Google Scholar
Billings, E. 1861. On some new or little known species of Lower Silurian fossils from the Potsdam group (Primordial zone). Palaeozoic Fossils, 1(1):118. Canadian Geological Survey, Dawson Brothers, Montreal.Google Scholar
Billings, E. 1871. On some new species of Palaeozoic fossils. Canadian Naturalist, 6:213233, 240.Google Scholar
Billings, E. 1872. On some fossils from the Primordial rocks of Newfoundland. Canadian Naturalist, 6:465479.Google Scholar
Bischoff, C. G. O. 1989. Byroniida new order from early Palaeozoic strata of eastern Australia (Cnidaria, thecate scyphopolyps). Senkenbergiana Lethaea, 59:275327.Google Scholar
Blaker, M. R., and Peel, J. S. 1997. Lower Cambrian trilobites from North Greenland. Meddelelser om Grønland, Geoscience, 35, 145 p.Google Scholar
Bowerbank, J. S. 1864. A Monograph of the British Spongiadae. Volume 1. Robert Hardwicke, London, 289 p.Google Scholar
Brasier, M. D. 1984. Microfossils and small shelly fossils from the Lower Cambrian Hyolithes Limestone at Nuneaton, English Midlands. Geological Magazine, 121:229253.Google Scholar
Brock, G. A., Engelbretsen, M. J., Jago, J. B., Kruse, P. D., Laurie, J. R., Shergold, J. H., Shi, G. R., and Sorauf, J. E. 2000. Palaeobiogeographic affinities of Australian Cambrian faunas. Association of Australasian Palaeontologists Memoir, 23, 61 p.Google Scholar
Cobbold, E. S. 1921. The Cambrian horizons of Comley (Shropshire) and their Brachiopoda, Pteropoda, Gastropoda, etc. Quarterly Journal of the Geological Society of London, 76:325386.Google Scholar
Conway Morris, S. 1997. The cuticular structure of the 495-Myr-old type species of the fossil worm Palaeoscolex, P. piscatorum (?Priapulida). Zoological Journal of the Linnean Society, 119:6982.Google Scholar
Conway Morris, S., and Peel, J. S. 1995. Articulated halkieriids from the Lower Cambrian of North Greenland and their role in early protostome evolution. Philosophical Transactions of the Royal Society of London, B, 347:305358.Google Scholar
Conway Morris, S., and Robison, R. A. 1986. Middle Cambrian priapulids and other soft-bodied fossils from Utah and Spain. University of Kansas Paleontological Contributions, 117:122.Google Scholar
Cowie, J. W., and Adams, P. J. 1957. The geology of the Cambro–Ordovician rocks of central East Greenland, Pt. I, Stratigraphy and structure. Meddelelser om Grønland, 153(1), 193 p.Google Scholar
Cowie, J. W., and Spencer, A. M. 1970. Trace fossils from the late Precambrian/Lower Cambrian of East Greenland, p. 91100. In Crimes, T. P. and Harper, C. J. (eds.), Trace fossils. Geological Journal, special issue, 3.Google Scholar
Dalziel, I. W. D. 1997. Neoproterozoic–Paleozoic geography and tectonics: Review, hypothesis, environmental speculation. Geological Society of America Bulletin, 106:243252.Google Scholar
Doré, F., and Reid, R. E. 1965. Allonia tridophora nov. gen., nov. sp., nouvelle éponge du Cambrien inférieur de Cateret (Manche). Comptes Rendus Sommaire de séances de la Société Géologique de France, 1965:2021.Google Scholar
Duan, Chenghua. 1984. Small shelly fossils from the Lower Cambrian Xihaoping Formation in the Shennongjia District, Hubei Province—hyoliths and fossil skeletons of unknown affinities. Bulletin of the Tianjin Institute of Geology and Mineral Resources, 7:143188. (In Chinese with English summary) Google Scholar
Duméril, A. M. C. 1806. Zoologie Analytique ou Méthode Naturelle de Classification des Animaux. Allais, Paris, xxiv + 344 p.Google Scholar
Dzik, J., and Krumbiegel, G. 1989. The oldest ‘onychophoran’ Xenusion: A link connecting phyla? Lethaia, 22:169181.Google Scholar
Esakova, N. V., and Zhegallo, E. A. 1996. Biostratigrafiya i fauna nizhnego kembriya Mongolii. Trudy, Sovmestnaya Rossiysko-Mongol'skaya Paleontologicheskaya Ekspeditsiya, 46. Nauka, Moscow, 214 p. (In Russian) Google Scholar
Fairchild, I. J., and Hambrey, M. J. 1995. Vendian basin evolution in East Greenland and NE Svalbard. Precambrian Research, 73:217233.Google Scholar
Fisher, D. W. 1962. Small conoidal shells of uncertain affinities, p. W98W143. In Moore, R. C. (ed.), Treatise on Invertebrate Paleontology. Miscellanea. Geological Society of America and University of Kansas Press, Lawrence.Google Scholar
Fritz, W. H. 1973. Medial Lower Cambrian trilobites from the Mackenzie Mountains, northwestern Canada. Papers of the Geological Survey of Canada, 13–24:143.Google Scholar
Fritz, W. H., and Yochelson, E. L. 1988. The status of Salterella as a Lower Cambrian index fossil. Canadian Journal of Earth Sciences, 25:403416.Google Scholar
Frykman, P. 1978. Investigation of Lower Palaeozoic rocks in northern East Greenland. Rapport Grønlands Geologiske Undersøgelse, 90:107109.Google Scholar
Frykman, P. 1979. Cambro–Ordovician rocks of C. H. Ostenfeld Nunatak, northern East Greenland. Rapport Grønlands Geologiske Undersøgelse, 91:125132.Google Scholar
Gazdzicki, A., and Wrona, R. 1986. Polskie badania paleontologiczne w Antarktyce Zachodniej (1986). Prezglad Geologiczny, 34:609617.Google Scholar
Gedik, I. 1977. Conodont stratigraphy in the Middle Taurus. Bülteni Türkiye Jeoloji Kurumu, 20:3548. (In Turkish) Google Scholar
Geyer, G. 1986. Mittelkambrische Mollusken aus Marokko und Spanien. Senkernbergiana Lethaea, 67:55118.Google Scholar
Geyer, G. 1994. An enigmatic bilateral fossil from the Lower Cambrian of Morocco. Journal of Paleontology, 68:710716.CrossRefGoogle Scholar
Geyer, G., and Shergold, J. 2000. The quest for internationally recognized divisions of Cambrian time. Episodes, 23:188195.Google Scholar
Gorjansky, V. Yu., and Popov, L. E. 1985. Morphology, systematic position and origin of the inarticulate brachiopods with calcareous shells. Paleontologicheskii Zhurnal, 1985(3):8796. (In Russian) Google Scholar
Grant, R. E. 1836. Animal kingdom, p. 107118. In Todd, R. B. (ed.), The Cyclopaedia of Anatomy and Physiology. Sherwood, Gilbert, and Piper, London.Google Scholar
Gravestock, D. I., Alexander, E. M., Demidenko, Yu. E., Esakova, N. V., Holmer, L. E., Jago, J. B., Lin, Tianrui, Melnikova, L. M., Parkhaev, P. Yu., Rozanov, A. Yu., Ushatinskaya, G. T., Zang, Wenlong, Zhegallo, E. A., and Zhuravlev, A. Yu. 2001. The Cambrian Biostratigraphy of the Stansbury Basin, South Australia. Russian Academy of Sciences, Transaction of the Palaeontological Institute, 282, 344 p.Google Scholar
Griffin, W. L., and Yochelson, E. L. 1975. Mineralogy of Early Cambrian Salterella rugosa from East Greenland. Bulletin of the Geological Society of Denmark, 24:221227.Google Scholar
Gubanov, A. P. 1998. The Early Cambrian molluscan evolution and its palaeogeographic implications. Acta Universitatis Carolinae, Geologica, 42:419422.Google Scholar
Gubanov, A. P. 2002. Early Cambrian Paleogeography and the probable Iberia–Siberia connection. Tectonophysics, 352:153168.Google Scholar
Gubanov, A. P., Fernandez Remolar, D. C., and Peel, J. S. 2004a. Early Cambrian molluscs from Sierra de Córdoba (Spain). Geobios, 35:199215.Google Scholar
Gubanov, A. P., Skovsted, C. B., and Peel, J. S. 2004b. Anabarella australis (Mollusca, Helcionelloida) from the Lower Cambrian of Greenland. Geobios, 37:219224.Google Scholar
Hall, J. 1847. Description of the Organic Remains of Lower Paleozoic Division of the New York System. Paleontology of New York, 1, 338 p.Google Scholar
Hall, J. 1861. Supplementary note to the thirteenth report of the Regent of the State Cabinet. Annual Report of the New York State Cabinet of Natural History, Albany, Report 15, p. 113119.Google Scholar
Hall, J. 1872. Notes on some new or imperfectly known forms among the Brachiopoda, etc. Annual Report to the Regents of the University of the State of New York, Report 23, Appendix G, p. 244247.Google Scholar
Hambrey, M. J., and Spencer, A. M. 1987. Late Precambrian glaciation of central East Greenland. Meddelelser om Grønland Geoscience, 19, 50 p.Google Scholar
Hambrey, M. J., Peel, J. S., and Smith, M. P. 1989. Upper Proterozoic and Lower Palaeozoic strata in northern East Greenland. Rapport Grønlands Geologiske Undersøgelse, 145:103108.Google Scholar
Hao, Yichun, and Shu, Degan. 1987. The oldest known, well preserved Pheodaria (Radiolaria) from southern Shaanxi. Geoscience, 1987(1):301310. (In Chinese, with English summary) Google Scholar
Higgins, A. K., Leslie, A. G., and Smith, M. P. 2001. Neoproterozoic–Lower Palaeozoic stratigraphical relationships in the marginal thin-skinned thrust belt of the East Greenland Caledonides: Comparisons with the foreland in Scotland. Geological Magazine, 138:143160.Google Scholar
Hinde, G. J. 1888. Monograph of British Fossil Sponges. Volume 2. Monographs of the Palaeontographical Society, 41(194):93188.Google Scholar
Hinz, I. 1987. The Lower Cambrian microfauna of Comley and Rushton, Shropshire/England. Palaeontographica Abteilung A, 198:41100.Google Scholar
Hinz, I., Kraft, P., Mergl, M., and Müller, K. 1990. The problematic Hadimopanella, Kaimenella, Milaculum and Utahphospha identified as sclerites of Palaeoscolecida. Lethaia, 23:217221.Google Scholar
Hinz-Schallreuter, I. 1993. Cambrian ostracods mainly from Baltoscandia and Morocco. Archiv für Geschiebekunde, 1(7):369,370,385–448.Google Scholar
Holm, G. 1893. Sveriges kambrisk-siluriska Hyolithidae och Conulariidae. Sveriges Geologiska Undersökning, Afhandlingar och Uppsatser C, 112, 172 p.Google Scholar
Holmer, L. E., Skovsted, C. B., and Williams, A. 2002. A stem group brachiopod from the Lower Cambrian—support for a Micrina (halkieriid) ancestry. Palaeontology, 45:875882.Google Scholar
Hou, Xianguang, and Bergström, J. 1995. Cambrian lobopodians—ancestors of extant onychophorans? Zoological Journal of the Linnean Society, 114:319.Google Scholar
Hou, Xianguang, Siveter, D. J., Williams, M., and Feng, Xianghong. 2002. A monograph of the bradoriid arthropods from the Lower Cambrian of SW China. Transactions of the Royal Society of Edinburgh: Earth Sciences, 92:347409.Google Scholar
Howell, B. F. 1935. Cambrian and Ordovician trilobites from Hérault, southern France. Journal of Paleontology, 9:222238.Google Scholar
Huo, Shicheng. 1956. Brief notes on Lower Cambrian Archaeostraca from Shensi and Yunnan. Acta Palaeontologica Sinica, 4:425445. (In Chinese with English abstract) Google Scholar
James, N. P., and Debrenne, F. 1980. First regular archaeocyaths from the northern Appalachians, Forteau Formation, western Newfoundland. Canadian Journal of Earth Sciences, 17:16091615.Google Scholar
Jell, P. A. 1980. Earliest known pelecypod on Earth—a new Early Cambrian genus from South Australia. Alcheringa, 4:233239.Google Scholar
Klein, J. T. 1734. Naturalis Dispositio Echinodermatum. Accessit Lucubratiuncula de Aculeis Echinorum Marinorum, cum Spicilegio de Belemnitis. Gedani, Schreiber, 79 p.Google Scholar
Kobayashi, T. 1939. On the agnostids (Pt. 1). Journal of the Faculty of Science, Imperial University of Tokyo, Section II, Geology, Mineralogy, Geography, Seismology, 5:69198.Google Scholar
Kobayashi, T. 1943. Brief notes on the eodiscids I, their classification with a description of a new species and a new variety. Proceedings Imperial Academy Tokyo, 19:3742.CrossRefGoogle Scholar
Landing, E. 1974. Early and Middle Cambrian conodonts from the Taconic allochthon, eastern New York. Journal of Paleontology, 48:12411248.Google Scholar
Landing, E. 1984. Skeleton of lapworthellids and the supragenetic classification of tommotiids (Early and Middle Cambrian phosphatic problematica). Journal of Paleontology, 58:13801398.Google Scholar
Landing, E. 1988. Lower Cambrian of Eastern Massachusetts: Stratigraphy and small shelly fossils. Journal of Paleontology, 62:661695.Google Scholar
Landing, E., and Bartowski, K. E. 1996. Oldest shelly fossils from the Taconic allochthon and late Early Cambrian sea-levels in eastern Laurentia. Journal of Paleontology, 70:741761.CrossRefGoogle Scholar
Landing, E., Geyer, G., and Bartowski, K. E. 2002. Latest Early Cambrian small shelly fossils, trilobites, and Hatch Hill dysaerobic interval on the Québec continental slope. Journal of Paleontology, 76:287305.Google Scholar
Laurie, J. R. 1986. Phosphatic fauna of the early Cambrian Todd River Dolomite, Amadeus Basin, central Australia. Alcheringa, 10:431454.Google Scholar
Li, Guoxiang, and Xiao, Shuhai. 2004. Tannuolina and Micrina (Tannuolinidae) from the Lower Cambrian of eastern Yunnan, south China, and their scleritome reconstruction. Journal of Paleontology, 78:900913.Google Scholar
Lieberman, B. S. 1999. Systematic revision of the Olenelloidea (Trilobita, Cambrian). Bulletin of the Peabody Museum of Natural History, Yale University, 45, 150 p.Google Scholar
Linnarsson, J. G. O. 1871. Om några försteningar från Sveriges och Norges “Primordialzon.” Öfversikt af Kongliga Vetenskaps-Akademiens Förhandlingar, 6:789796.Google Scholar
Lochman, C. 1956. Stratigraphy, paleontology and paleogeography of the Elliptocephala asaphoides strata in Cambridge and Hoosick quadrangles, New York. Bulletin of the Geological Society of America, 67:13311396.Google Scholar
Malinky, J. M., and Skovsted, C. B. 2004. Hyoliths and small shelly fossils from the Lower Cambrian of North-East Greenland. Acta Palaeontologia Polonica, 49:551578.Google Scholar
Martinsson, A. 1979. Albrunnicola, a new name for the Cambrian ostracode genus Longispina Andres, 1969. Lethaia, 12:27.Google Scholar
Matthew, G. F. 1886. On the Cambrian faunas of Cape Breton and Newfoundland. Transactions of the Royal Society of Canada, 4:147157.Google Scholar
Matthew, G. F. 1891. Illustrations of the fauna of the St. John Group, No. 5. Royal Society of Canada, Transactions (series 1, section 4), 8:123166.Google Scholar
Matthew, G. F. 1895. The Protolenus fauna. Transactions of the New York Academy of Sciences, 14:101153.Google Scholar
Matthew, G. F. 1899. Preliminary notice of the Etcheminian fauna of Newfoundland. Bulletin of the Natural History Society of New Brunswick, 4:189197.Google Scholar
Matthew, G. F. 1902. Ostracoda of the basal Cambrian rocks in Cape Breton. Canadian Record of Science, 8:437470.Google Scholar
Mckerrow, W. S., Scotese, R. C., and Brasier, M. D. 1992. Early Cambrian continental reconstructions. Journal of the Geological Society of London, 149:599606.Google Scholar
Mehl, D. 1998. Porifera and Chancelloriidae from the Middle Cambrian of the Georgina Basin, Australia. Palaeontology, 41:11531182.Google Scholar
Melnikova, L. M. 1988. Nekotoryye bradoriidy (Crustacea) iz botomskogo yarusa vostochnogo Zabaykal'ya. Paleontologicheskiy Zhurnal, 1988:114117. (In Russian) Google Scholar
Melnikova, L. M., Siveter, D. J., and Williams, M. 1997. Cambrian Bradoriida and Phosphatocopida (Arthropoda) of the former Soviet Union. Journal of Micropalaeontology. 16:179191.Google Scholar
Meshkova, N. P. 1969. K voprosu o paleontologicheskoj kharakteristike nizhnekembrijskikh otlozhenij sibirskoj platformy, p. 158174. In Zhuravleva, I. T. (ed.), Biostratigfiya i Paleontologiya Nizhnego Kembriya Sibiri i Dal'Nego Vostoka. Izdatel'stvo Nauka, Moscow. (In Russian) Google Scholar
Missarzhevsky, V. V. 1966. Perye nakhodki Lapworthella v nizhnem kembrii Sibirskoj platformy. Paleontologicheskiy Zhurnal, 1966:1318. (In Russian) Google Scholar
Missarzhevsky, V. V. 1970. Novoye rodovoye nazvaniye Tommotia Missarzhevsky, nom. nov. Paleontologicheskiy Zhurnal, 1970(2):100. (In Russian) Google Scholar
Missarzhevsky, V. V. 1976. Novye dannye o rannekembriyskikh monoplakoforakh. Paleontologicheskiy Zhurnal, 1976:129131. (In Russian) Google Scholar
Missarzhevsky, V. V. 1977. Konodonty (?) i fosfatnye problematiki kembriya Mongolii i Sibiri, p. 1019. In Bespozvonochnye Paleozoya Mongolii, 10–19. Trudy Sovmestaya Sovetsko-Mongolskaya Paleontologicheskaya Ekspeditsiya. (In Russian) Google Scholar
Missarzhevsky, V. V. 1989. Drevnejshie skeletnye okamenelosti i stratigrafiya pogranichnykh tolshch dokembriya i kembriya. Trudy Akademia Nauk SSSR, 443, 238 p. (In Russian) Google Scholar
Missarzhevsky, V. V., and Mambetov, A. M. 1981. Stratigrafiya i fauna progranichnykh sloev kembiya i dokembriya Malogo Karatau. Trudy Geologischeskogo Instituta Akademia Nauk SSSR, Leningrad, 326, 92 p. (In Russian) Google Scholar
Müller, K. J., and Hinz-Schallreuter, I. 1993. Palaeoscolecid worms from the Middle Cambrian of Australia. Palaeontology, 36:543592.Google Scholar
Murchison, R. I. 1859. Siluria, the History of the Oldest Fossiliferous Rocks and their Foundations; with a Brief Sketch of the Distribution of Gold over the Earth (third edition). John Murray, London, 592 p.Google Scholar
Nogami, Y. 1967. Kambrische Conodonten von China, Teil 2. Memoirs of the College of Science, University of Kyoto, series B, 33:211218.Google Scholar
Öpik, A. A. 1968. Ordian (Cambrian) Crustacea Bradoriida of Australia. Bulletin of the Bureau of Mineral Resources, Geology and Geophysics, 53:1249.Google Scholar
Palmer, A. R. 1998. A proposed nomenclature for stages and series for the Cambrian of Laurentia. Canadian Journal of Earth Science, 35:323328.Google Scholar
Palmer, A. R., and Repina, L. N. 1993. Through a glass darkly: Taxonomy, phylogeny and biostratigraphy of the Olenellina. University of Kansas Paleontological Contributions, 3, 35 p.Google Scholar
Parkhaev, P. Yu. 1998. Siphonoconcha—Novyy klass rannekembriyskikh dvustvorchatykh organizmov. Paleontologicheskiy Zhurnal, 1:316. (In Russian) Google Scholar
Peel, J. S. 2003. A problematic cap-shaped metazoan from the Lower Cambrian of Estonia. GFF, 125:157161.CrossRefGoogle Scholar
Peel, J. S., and Berg-Madsen, V. 1988. A new salterellid (phylum Agmata) from the upper Middle Cambrian of Denmark. Bulletin of the Geological Society of Denmark, 37:7582.Google Scholar
Peel, J. S., and Larsen, N. H. 1984. Hadimopanella apicata from the Lower Cambrian of western North Greenland. Rapport Grønlands Geologiske Undersøgelse, 121:8996.Google Scholar
Peel, J. S., and Skovsted, C. B. 2005. Problematic molluscs from the Bastion Formation of North-East Greenland. Palaeontologische Zeitschrift. 79:461470.CrossRefGoogle Scholar
Peel, J. S., and Yochelson, E. L. 1982. A review of Salterella (Phylum Agmata) from the Lower Cambrian in Greenland and Mexico. Rapport Grønlands Geologiske Undersøgelse, 108:3139.Google Scholar
Pickerill, R. K., and Peel, J. S. 1990. Trace fossils from the Lower Cambrian Bastion Formation of North-East Greenland. Rapport Grønlands Geologiske Undersøgelse, 147:543.Google Scholar
Popov, L. E., Bassett, M. G., Holmer, L. E., and Laurie, J. R. 1993. Phylogenetic analysis of higher taxa of Brachiopoda. Lethaia, 26:15.Google Scholar
Poulsen, C. 1932. The Lower Cambrian faunas of East Greenland. Meddelelser om Grønland, 87, 66 p.Google Scholar
Poulsen, C. 1967. Fossils from the Lower Cambrian of Bornholm. Danske Videnskabernes Selskab, Matematisk-Fysiske Meddelelser, 36:148.Google Scholar
Qian, Jianxin, and Xiao, Bing. 1984. An Early Cambrian small shelly fauna from the Aksu-Wushi region, Xinjiang. Professional Papers in Stratigraphy and Palaeontology, 13:6590. (In Chinese, with English summary) Google Scholar
Rasetti, F. 1952. Revision of North American trilobites of the family Eodiscidae. Journal of Paleontology, 26:434451.Google Scholar
Rasetti, F. 1967. Lower and Middle Cambrian trilobite faunas from the Taconic sequence of New York. Smithsonian Miscellaneous Collections, 152(4), 111 p.Google Scholar
Raymond, P. E. 1913. On genera of the Eodiscidae. Ottawa Naturalist, 27:101106.Google Scholar
Raymond, P. E. 1935. Leanchoilia and other mid-Cambrian Arthropoda. Bulletin of the Museum of Comparative Zoology, 76:205230.Google Scholar
Reif, W. E. 1968. Schwammreste aus dem oberen Ordovizium von Estland und Schweden. Neues Jahrbuch für Geologie und Paläontologie, Mitteilungen, 1968(12):733744.Google Scholar
Resser, C. E. 1938. Fourth contribution to nomenclature of Cambrian fossils. Smithsonian Miscellaneous Collections, 97(10), 43 p.Google Scholar
Resser, C. E., and Howell, B. F. 1938. Lower Cambrian Olenellus zone of the Appalachians. Bulletin of the Geological Society of America, 49:195248.Google Scholar
Richter, R. 1932. Crustacea (Paläontologie), p. 840864. In Dittler, R., Joos, G., Korschelt, E., Linek, G., Oltmanns, F., and Schaum, K. (eds.), Handwörterbuch der Naturwissenschaften (second edition). Gustav Fisher, Jena.Google Scholar
Rigby, J. K. 1986. Sponges of the Middle Cambrian Burgess Shale (Middle Cambrian), British Columbia. Palaeontographica Canadiana, 2:1105.Google Scholar
Rode, A. L., Lieberman, B. S., and Rowell, A. J. 2003. A new Early Cambrian bradoriid (Arthropoda) from East Antarctica. Journal of Paleontology, 77:691697.Google Scholar
Rozanov, A. Yu., Missarzhevsky, V. V., Volkova, N. A., Voronova, L. C., Krylov, I. N., Keller, B. M., Korolyuk, I. K., Lendzion, K., Michniak, R., Pykhova, N. G., and Sidorov, A. D. 1969. Tommotskij yarus i problema nizhnej grantisy kembriya. Trudy Geologocheskogo Instituta Akademia Nauk SSSR, 206, 380 p. (In Russian) Google Scholar
Salter, J. W. 1864. A Monograph of British Trilobites, Pt. 1. Palaeontographical Society, London, Monograph Vol. for 1862:180.Google Scholar
Schiøler, P. 1989. Non-toxic low-cost heavy liquid separation in the Geological Survey of Greenland. Rapport Grønlands Geologiske Undersøgelse, 145:1113.Google Scholar
Schmidt, F. 1888. Über eine neuendeckte untercambrische Fauna in Estland. Académie Impériale des Sciences, St Petersbourg, Mémoires (series 7), 36:127.Google Scholar
Siebold, C. T. E. Von, and Stannius, H. 1845. Lehrbuch der Vergleichenden Anatomie. von Veit, Berlin.Google Scholar
Siveter, D. J., and Williams, M. 1997. Cambrian bradoriid and phosphatocopid arthropods of North America. Special Papers in Palaeontology, 57, 69 p.Google Scholar
Skovsted, C. B. 2003a. Unusually preserved Salterella from the Lower Cambrian Forteau Formation of Newfoundland. GFF, 125:1722.Google Scholar
Skovsted, C. B. 2003b. Mobergellans (Problematica) from the Cambrian of Greenland, Siberia and Kazakhstan. Paläontologische Zeitschrift, 77:429443.Google Scholar
Skovsted, C. B. 2004. Mollusc fauna of the Early Cambrian Bastion Formation of North-East Greenland. Bulletin of the Geological Society of Denmark, 51:1137.Google Scholar
Skovsted, C. B., and Holmer, L. E. 2003. The Early Cambrian stem group brachiopod Mickwitzia from Northeast Greenland. Acta Palaeontologica Polonica, 48:1130.Google Scholar
Skovsted, C. B., and Holmer, L. E. 2005. Early Cambrian brachiopods from North-East Greenland. Palaeontology, 48:325345.Google Scholar
Skovsted, C. B., and Peel, J. S. 2001. The problematic fossil Mongolitubulus from the Lower Cambrian of Greenland. Bulletin of the Geological Society of Denmark, 48:135147.Google Scholar
Skovsted, C. B., Peel, J. S., and Atkins, C. J. 2004. The problematic fossil Triplicatella from the Early Cambrian of Greenland, Canada and Siberia. Canadian Journal of Earth Science, 41:12731283.Google Scholar
Snodgrass, R. E. 1938. Evolution of the Annelida, Onychophora, and Arthropoda. Smithsonian Miscellaneous Collections, 97:1159.Google Scholar
Spencer, L. M. 1980. Paleoecology of a Lower Cambrian archaeocyathid interreef fauna from southern Labrador. Unpublished , , 153 p.Google Scholar
Stouge, S., Boyce, D. W., Christiansen, J., Harper, D. A. T., and Knight, I. 2001. Vendian–Lower Ordovician stratigraphy of Ella Ø, North-East Greenland: New investigations. Geology of Greenland Survey Bulletin, 189:107114.Google Scholar
Sylvester-Bradley, P. C. 1961. Archaeocopida, p. Q100105. In Moore, R. C. (ed.), Treatise on Invertebrate Paleontology. Pt. Q. Arthropoda 3. Geological Society of America and University of Kansas Press, Lawrence.Google Scholar
Theokritoff, G. 1985. Early Cambrian biogeography in the North Atlantic region. Lethaia, 18:283293.Google Scholar
Tirsgaard, H., and Sønderholm, M. 1997. Lithostratigraphy, sedimentary evolution and sequence stratigraphy of the Upper Proterozoic Lyell Land Group (Eleonore Bay Supergroup) of East and North-East Greenland. Geology of Greenland Survey Bulletin, 178, 60 p.CrossRefGoogle Scholar
Ulrich, E. O., and Bassler, R. S. 1931. Cambrian bivalved Crustacea of the order Conchostraca. Proceedings of the United States National Museum, 78:1130.Google Scholar
Ushatinskaya, G. T. 2002. Genus Micrina (small shelly fossils) from the Lower Cambrian of South Australia: Morphology, microstructures, and possible relation to halkieriids. Paleontological Journal, 36:919.Google Scholar
Vasilieva, N. I. 1994. Rannekembriiskaya melkaya rakovinnaya fauna iz skvazhin zapadnoi Yakutii. Paleontologicheskiy Zhurnal, 1994:39. (In Russian) Google Scholar
Vasilieva, N. I. 1998. Melkaya rakovinnaya fauna i biostratigrafiya nizhnego kembriya Sibirskoj platformy. VNIGRI, St. Petersburg, 139 p. (In Russian) Google Scholar
Vasilieva, N. I., and Sayutina, T. A. 1988. Morfologicheskie raznoobrazie skleritov khantsellorij. Trudy Instituta Geologii i Geofizikii Sibirskojie Otdelnie, 720:190198. (In Russian) Google Scholar
Vidal, G. 1979. Acritarchs from the Upper Proterozoic and Lower Cambrian of East Greenland. Bulletin, Grønlands Geologiske Undersøgelse, 134, 40 p.Google Scholar
Voronova, L. G., Drosdova, N. A., Esakova, N. V., Zhegallo, E. A., Zhuravlev, A. Yu., Rozanov, A. Yu., Sayutina, T. A., and Ushatinskaya, G. T. 1987. Iskopaemye nizhnego kembriya gor Makkenzi (Kanada). Trudy Paleontologicheskyi Institut, Akademia Nauk SSSR, 224, 88 p. (In Russian) Google Scholar
Walch, J. E. I. 1771. Die Naturgeschichte der Versteinerungen zur Erläuterung der Knorrischen Sammlungen von Merkwürdigkeiten der Natur. Felßecker, Nürnberg.Google Scholar
Walcott, C. D. 1886. Second contribution to the studies on the Cambrian faunas of North America. Bulletin of the United States Geological Survey, 30, 369 p.Google Scholar
Walcott, C. D. 1889. Stratigraphic position of the Olenellus fauna in North America and Europe. American Journal of Science, third series, 38:374392.Google Scholar
Walcott, C. D. 1890. The fauna of the Lower Cambrian or Olenellus zone. United States Geological Survey, 10th Annual Report, p. 509763.Google Scholar
Walcott, C. D. 1908. Cambrian Brachiopoda: Descriptions of new genera and species. Smithsonian Miscellaneous Collections, 53:53137.Google Scholar
Walcott, C. D. 1910. Olenellus and other genera of the Mesonacidae. Smithsonian Miscellaneous Collections, 53:231422.Google Scholar
Walcott, C. D. 1920. Middle Cambrian Spongiae. Smithsonian Miscellaneous Collections, 67:261364.Google Scholar
Whittard, W. F. 1953. Palaeoscolex piscatorum gen. et sp. nov., a worm from the Tremadocian of Shropshire. Quarterly Journal of the Geological Society, London, 109:125135.Google Scholar
Williams, A. 1963. The Caradocian brachiopod faunas of the Bala District, Merionethshire. Bulletin of the British Museum (Natural History), Geology, 8(7):327471.Google Scholar
Williams, A., and Holmer, L. E. 2002. Shell structure and inferred growth, functions and affinities of the sclerites of the problematic Micrina . Palaeontology, 45:845873.Google Scholar
Williams, A., Carlson, S. J., Brunton, C. H. C., Holmer, L. E., and Popov, L. E. 1996. A supra-ordinal classification of the Brachiopoda. Philosophical Transactions of the Royal Society of London, B, 351:11711193.Google Scholar
Wiman, C. 1903. Studien über das Nordbaltischen Silurgebiet. I. Olenellussandstein, Obolussandstein und Ceratopygescheifer. Bulletin of the Geological Institution of the University of Uppsala, 6:1276.Google Scholar
Wrona, R. 1982. Early Cambrian phosphatic microfossils from southern Spitsbergen (Hornsund region), p. 916. In Biernat, G. and Szymanska, W. (eds.), Palaeontology of Spitsbergen Studies I. Palaeontologica Polonica, 43.Google Scholar
Wrona, R. 2004. Cambrian microfossils from glacial erratics of King George Island, Antarctica. Acta Palaeontologica Polonica, 49:1356.Google Scholar
Yochelson, E. L. 1977. Agmata, a proposed extinct phylum of Early Cambrian age. Journal of Paleontology, 51:437454.Google Scholar
Yochelson, E. L. 1983. Salterella (Early Cambrian; Agmata) from the Scottish Highlands. Palaeontology, 26:253260.Google Scholar