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Conodonts from a platform-to-basin transect, lower Ordovician to lower Silurian, northeastern British Columbia, Canada1

Published online by Cambridge University Press:  20 May 2016

Leanne J. Pyle  and
Christopher R. Barnes
Leanne J. Pyle
Affiliation:
School of Earth and Ocean Sciences, University of Victoria, P.O. Box 3055, Victoria, B.C. V8W 3P6, Canada, ,
Christopher R. Barnes
Affiliation:
School of Earth and Ocean Sciences, University of Victoria, P.O. Box 3055, Victoria, B.C. V8W 3P6, Canada, ,
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Abstract

The conodont fauna from nine sections across a platform-to-basin transect in northeastern British Columbia includes species of Early Ordovician (Tremadocian) to Early Silurian (Llandovery) age. A collection of 9,110 conodont elements was recovered from 205 samples taken from nine stratigraphic sections that preserve the platform succession of the Kechika, Skoki, Beaverfoot, McCusker and Nonda Formations and their off-shelf equivalents, the Ospika, Robb, Kenny and Laurier Formations of the Road River Group. The fauna is assigned to 106 species representing 67 genera; the Ordovician species are representative of two faunal realms. One new genus, left in open nomenclature, is described. Five new species include Drepanoistodus latus and four new species left in open nomenclature assigned to the following genera: Walliserodus, Multioistodus?, Pseudooneotodus, and Belodina. The Midcontinent Realm zones recognized include, in ascending order, the Acodus kechikaensis, Oepikodus communis, Jumudontus gananda, Tripodus laevis to Plectodina aculeata zones, Phragmodus undatus and Gamachignathus ensifer? zones. Zonal species of the Atlantic Realm are Microzarkodina flabellum, Eoplacognathus suecicus, Baltoniodus variabilis, Pygodus anserinus, and Amorphognathus tvaerensis. The Silurian fauna, of lower diversity than the Ordovician fauna, is representative of the Distomodus staurognathoides and Pterospathodus amorphognathoides zones.

Type
Research Article
Information
Journal of Paleontology , Volume 77 , Issue 1 , January 2003 , pp. 146 - 171
Copyright
Copyright © The Paleontological Society

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Footnotes

1

All tables available on the Journal of Paleontology's Supplemental Database (http://www.journalofpaleontology.org).

References

Albanesi, G. L. 1998. Taxonomia de conodontes de las Secuencias Ordovicicas Del Cerro Potrerillo, Precordillera Central De San Juan, R. Argentina, p. 101–253. In Hünicken, M. A. (ed.), Bioestratigrafia, Biofacies y Taxonomia de Conodontes de las Secuencias Ordovicicas del Cerro Potrerillo, Precordillera Central De San Juan, R. Argentina. Academia Nacional de Ciencias, Cordoba.Google Scholar
Aldridge, R. J. 1979. An upper Llandovery conodont fauna from Peary Land, eastern North Greenland. Gr⊘nlands Geologiske Unders⊘gelse, Rapport no. 91:7–23.CrossRefGoogle Scholar
Aldridge, R. J. 1982. A fused cluster of coniform conodont elements for the Late Ordovician of Washington land, western North Greenland. Paleontology, 25:425–430.Google Scholar
Aldridge, R. J., and Schönlaub, H. P. 1989. Conodonts, p. 274–279. In Holland, C. H. and Bassett, M. G. (eds.), A Global Standard for the Silurian System. National Museum of Wales, Geological Series, Cardiff, 9.Google Scholar
An, T.-X., Du, G.-Q., and Gao, Q.-Q. 1985. Ordovician conodonts from Hubei, China. Geological Publishing House, Beijing, 64 p. (In Chinese).Google Scholar
Armstrong, H. A. 1990. Conodonts from the Upper Ordovician–Lower Silurian carbonate platform of North Greenland. Gronlands Geologiske Undersogelse Bulletin, 159:1–151.CrossRefGoogle Scholar
Bauer, J. A. 1987. Conodonts and conodont biostratigraphy of the McLish and Tulip Creek Formations (Middle Ordovician) of South-Central Oklahoma. Oklahoma Geological Survey Bulletin, 141:1–58.Google Scholar
Bergström, S. M. 1971. Conodont biostratigraphy of the Middle and Upper Ordovician of Europe and eastern North America. Geological Society of America Memoir, 127:83–161.CrossRefGoogle Scholar
Bergström, S. M. 1982. Biogeography, evolutionary relationships, and biostratigraphic significance of Ordovician platform conodonts. Fossils and Strata, 15:35–58.Google Scholar
Bischoff, G., and Sannemann, D. 1958. Unterdevonische Conodonten aus dem Frankenwald. Notisblatt des Hessischen Landesamt für Bodenforschung, 86:87–110.Google Scholar
Branson, E. B., and Branson, C. C. 1947. Lower Silurian conodonts from Kentucky. Journal of Paleontology, 21:549–556.Google Scholar
Branson, E. B., and Mehl, M. G. 1933. Conodont studies, numbers 1 and 2. University of Missouri Studies, 8(1–2):1–349.Google Scholar
Cecile, M. P., and Norford, B. S. 1979. Basin to platform transition, Lower Paleozoic strata of Ware and Trutch map areas, northeastern British Columbia. Current Research, Pt. A, Geological Survey of Canada, Paper 79-1A:219–226.Google Scholar
Cooper, B. J. 1976. Multielement conodonts from the St. Clair Limestone (Silurian) of southern Illinois. Journal of Paleontology, 50:205–217.Google Scholar
Cooper, R. A., Nowlan, G. S., and Williams, S. H. 2001. Global stratotype section and point for base of the Ordovician System. Episodes, 24:19–28.CrossRefGoogle Scholar
Cullison, J. S. 1938. Dutchtown fauna of southeastern Missouri. Journal of Paleontology, 12:219–228.Google Scholar
Drygant, D. M. 1974. Simple conodonts from the Silurian and lowermost Devonian of the Volyno-Podolian area. Paleontologicheski y Sbornik, 10:64–69.Google Scholar
Dzik, J. 1976. Remarks on the evolution of Ordovician conodonts. Acta Paleontologica Polonica, 21:395–455.Google Scholar
Dzik, J. 1978. Conodont biostratigraphy and paleogeographical relations of the Ordovician Mojcza Limestone (Holy Cross Mts., Poland). Acta Palaeontologica Polonica, 23:51–72.Google Scholar
Dzik, J. 1994. Conodonts of the Mojcza Limestone, p. 43–128. In Dzik, J., Olempscka, E., and Pisera, A. (eds.), Ordovician Carbonate Platform Ecosystem of the Holy Cross Mountains. Palaeontologia Polonica, 53.Google Scholar
Ethington, R. L. 1959. Conodonts from the Ordovician Galena Formation. Journal of Paleontology, 33:257–292.Google Scholar
Ethington, R. L., and Clark, D. L. 1982. Lower and Middle Ordovician conodonts from the Ibex area, western Millard County, Utah. Brigham Young University, Geologic Studies, 28:1–160.Google Scholar
Fortey, R. A., Harper, D. A. T., Ingham, J. K., Owen, A. W., and Rushton, A. W. A. 1995. A revision of Ordovician series and stages from the historical type area. Geological Magazine, 132:15–30.CrossRefGoogle Scholar
Hamar, G. 1966. The Middle Ordovician of the Oslo Region, Norway. 22. Preliminary report on conodonts from the Oslo-Asker and Ringerike districts. Norsk Geologisk Tidsskrift, 46:27–83.Google Scholar
Harris, A. G., Dumoulin, J. A., Repetski, J. E., and Carter, C. 1995. Correlation of Ordovician rocks of Northern Alaska, p. 21–26. In Cooper, J. D., Droser, M. L., and Finney, S. C. (eds.), Ordovician Odyssey: Short Papers for the Seventh International Symposium on the Ordovician System. Society of Economic Paleontologists and Mineralogists, Fullerton.Google Scholar
Harris, R. W., and Harris, B. 1965. Some West Spring Creek (Ordovician Arbuckle) conodonts from Oklahoma. Oklahoma Geology Notes, 25:34–47.Google Scholar
Ji, Z., and Barnes, C. R. 1994. Lower Ordovician conodonts of the St. George Group, Port au Port Peninsula, western Newfoundland, Canada. Palaeontographica Canadiana, 11:1–149.Google Scholar
Leslie, S. A. 1997. Apparatus architecture of Belodina (Conodonta): Interpretations based on fused clusters of Belodina compressa (Branson and Mehl, 1933) from the Middle Ordovician (Turninian) Plattin Limestone of Missouri and Iowa. Journal of Paleontology, 7:921–926.CrossRefGoogle Scholar
Leslie, S. A. 2000. Mohawkian (Upper Ordovician) conodonts of eastern North America and Baltoscandia. Journal of Paleontology, 74:1122–1147.CrossRefGoogle Scholar
Leslie, S. A., and Bergström, S. M. 1995. Element morphology and taxonomic relationships of the Ordovician conodonts Phragmodus primus Branson and Mehl, 1933, the type species of Phragmodus Branson and Mehl, 1933, and Phragmodus undatus Branson and Mehl, 1933. Journal of Paleontology, 69:967–974.CrossRefGoogle Scholar
Lindström, M. 1955. Conodonts from the lower-most Ordovician strata of south-central Sweden. Geologiska Föreningens i Stockholm Förhandlingar, 76:517–604.CrossRefGoogle Scholar
Lindström, M. 1971. Lower Ordovician conodonts of Europe, p. 21–61. In Sweet, W. C. and Bergström, S. M. (eds.), Symposium on Conodont Biostratigraphy. Geological Society of America, Memoir 127.Google Scholar
Löfgren, A. 1978. Arenigian and Llanvirnian conodonts from Jämtland, northern Sweden. Fossils and Strata, 13:1–129.Google Scholar
Männik, P. 1998. Evolution and taxonomy of the Silurian conodont Pterospathodus . Paleontology, 41:1001–1050.Google Scholar
Männik, P., and Aldridge, R. J. 1989. Evolution, taxonomy and relationships of the Silurian conodont Pterospathodus . Paleontology, 32:893–906.Google Scholar
McCracken, A. D., Nowlan, G. S., and Barnes, C. R. 1980. Gamachignathus, a new multielement conodont genus from the latest Ordovician, Anticosti Island, Québec, p. 103–112. In Current Research, Pt. C, Geological Survey of Canada, Ottawa, Paper 80-1C.Google Scholar
Norford, B. S. 1996. Stratigraphy and biostratigraphy of the Advance Formation, a new upper Middle Ordovician unit, northern Rocky Mountains, British Columbia, p. 5–19. In Advance Formation; Stratigraphy and Biostratigraphy of a New Ordovician Formation from the Rocky Mountains, Northeastern British Columbia. Geological Survey of Canada, Bulletin 491.Google Scholar
Norford, B. S. et al. (37 authors). 1997. Correlation chart and biostratigraphy of the Silurian rocks of Canada. International Union of Geological Sciences, Publication no. 35:1–77.Google Scholar
Pander, C. H. 1856. Monographie der fossilen Fische des Silurischen Systems der Russisch-Baltischen Gouvernements. St. Petersburg, 10:1–91.Google Scholar
Pyle, L. J., and Barnes, C. R. 2000. Upper Cambrian to Lower Silurian stratigraphic framework of platform-to-basin facies, northeastern British Columbia. Bulletin of Canadian Petroleum Geology, 48:123–149.CrossRefGoogle Scholar
Pyle, L. J., and Barnes, C. R. 2001. Ordovician-Silurian stratigraphic framework, Macdonald Platform to Ospika Embayment transect, northeastern British Columbia. Bulletin of Canadian Petroleum Geology, 49:513–535.CrossRefGoogle Scholar
Pyle, L. J., and Barnes, C. R. 2002. Taxonomy, evolution and biostratigraphy of conodonts from the Kechika Formation, Skoki Formation and Road River Group (Upper Cambrian to Lower Silurian), northeastern British Columbia. National Research Council of Canada Monograph Series, 44461.Google Scholar
Pyle, L. J., Orchard, M. J., Barnes, C. R., and Landry, M. L. In press. Conodont biostratigraphy of the Lower to Middle Devonian Deserters Formation (new), Road River Group, northeastern British Columbia. Canadian Journal of Earth Sciences.Google Scholar
Repetski, J. E., and Ethington, R. L. 1983. Rossodus manitouensis (Conodonta), a new early Ordovician index fossil. Journal of Paleontology, 57:289–301.Google Scholar
Rexroad, C. B. 1967. Stratigraphy and conodont paleontology of the Brassfield (Silurian) in the Cincinnati Arch area. Indiana Geological Survey Bulletin, 36:1–69.Google Scholar
Rexroad, C. B., Droste, J. B., and Ethington, R. L. 1982. Conodonts from the Everton Dolomite and the St. Peter Sandstone (lower Middle Ordovician) in a core from southwestern Indiana. Indiana Department of Natural Resources Geological Survey Occasional Paper, 39:1–13.Google Scholar
Ross, R. J. J., Hintze, L. F., Ethington, R. L., Miller, J. F., Taylor, M. E., and Repetski, J. E. 1997. The Ibexian, lowermost Series in the North American Ordovician, p. 1–50. In Taylor, M. E. (ed.), Early Paleozoic Biochronology of the Great Basin. U.S. Geological Survey Professional Paper, 1579.Google Scholar
Serpagli, E. 1967. I conodonti dell'Ordoviciano superiore (Ashgiliano) delle Alpi Carniche. Bolletino della Societá Paleontologica Italiana, 6:30–111.Google Scholar
Serpagli, E. 1974. Lower Ordovician conodonts from Precordilleran Argentina (Province of San Juan). Bolletino della Societa Paleontologica Italiana, 13:17–98.Google Scholar
Stauffer, C. R. 1935. The conodont fauna of the Decorah Shale (Ordovician). Journal of Paleontology, 9:596–620.Google Scholar
Stouge, S. 1984. Conodonts of the Middle Ordovician Table Head Formation, western Newfoundland. Fossils and Strata, 16:1–145.Google Scholar
Stouge, S., and Bagnoli, G. 1988. Early Ordovician conodonts from Cow Head Peninsula, western Newfoundland. Palaeontographia Italica, 75:89–179.Google Scholar
Sweet, W. C. 1981. Genus Belodina Ethington 1959, p. 65–69. In Ziegler, W. (ed.), Catalogue of Conodonts. E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, IV.Google Scholar
Sweet, W. C. 1982. Conodonts from the Winnipeg Formation (Middle Ordovician) of the northern Black Hills, South Dakota. Journal of Paleontology, 56:1029–1049.Google Scholar
Sweet, W. C. 1984. Graphic correlation of upper Middle and Upper Ordovician rocks, North American Midcontinent Province, U.S. A., p. 23–35. In Bruton, D. L. (ed.), Aspects of the Ordovician System. Palaeontological Contributions from the University of Oslo, 295. Universitetsforlaget, Oslo, 295.Google Scholar
Sweet, W. C., Ethington, R. L., and Barnes, C. R. 1971. North American Middle and Upper Ordovician conodont faunas. Geological Society of America Memoir, 127:163–193.CrossRefGoogle Scholar
Sweet, W. C., and Schönlaub, H. P. 1975. Conodonts of the genus Oulodus Branson and Mehl, 1933. Geologica et Palaeontologica, 9:41–59.Google Scholar
Sweet, W. C., Thompson, T. L., and Satterfield, I. R. 1975. Conodont stratigraphy of the Cape Limestone (Maysvillian) of eastern Missouri. Missouri Geological Survey Report of Investigations, 57:1–59.Google Scholar
Taylor, G. C. 1979. Trutch and Ware East Half Map Areas. Geological Survey of Canada, Open File 606.Google Scholar
Thompson, R. I. 1989. Stratigraphy, tectonic evolution and structural analysis of the Halfway River map area (94B), northern Rocky Mountains, British Columbia. Geological Survey of Canada Memoir, 42:1–119.Google Scholar
van Wamel, W. A. 1974. Conodont biostratigraphy of the Upper Cambrian and Lower Ordovician of north-western Öland, south-eastern Sweden. Utrecht Micropaleontology Bulletin, 10:1–126.Google Scholar
Walliser, O. H. 1964. Conodonten des Silurs, p. 1–106. In Abhandlungen des Hessischen Landesamtes für Bodenforschung, 41.Google Scholar
Watson, S. T. 1988. Ordovician conodonts from the Canning Basin (W. Australia). Palaeontographica Abteilung A: Palaeozoologie-Stratigraphie, 203:91–147.Google Scholar
Webby, B. D. 1995. Towards an Ordovician time scale, p. 5–10. In Cooper, J. D., Droser, M. L., and Finney, S. C. (eds.), Ordovician Odyssey: Short Papers for the Seventh International Symposium on the Ordovician System. Society of Economic Paleontologists and Mineralogists, Fullerton.Google Scholar
Webby, B. D. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletter of Stratigraphy, 36:1–33.CrossRefGoogle Scholar
Zhang, J. 1998a. Conodonts from the Guniutan Formation (Llanvirnian) in Hubei and Hunan Provinces, south-central China. Stockholm Contributions in Geology, 46:1–161.Google Scholar
Zhang, J. 1998b. The Ordovician conodont genus Pygodus , p. 87–105. In Szaniawski, H. (ed.), Proceedings of the Sixth European conodont symposium (ECOS VI). Panstwowe Wydawnictwo Naukowe, Warsaw, Palaeontologia Polonica 58.Google Scholar
Zhang, J. 1999. Review of the Ordovician conodont zonal index Eoplacognathus suecicus Bergström, 1971. Journal of Paleontology, 73:487–493.Google Scholar
Zhang, S., and Barnes, C. R. 2000. Anticostiodus, a new multielement conodont genus from the Lower Silurian, Anticosti Island, Québec. Journal of Paleontology, 74:662–669.CrossRefGoogle Scholar
Zhang, S., and Barnes, C. R. 2002. A new Llandovery (Early Silurian) conodont biozonation and conodonts from the Becscie, Merrimack and Gun River formations, Anticosti Island, Québec. Journal of Paleontology Memoir 57.CrossRefGoogle Scholar