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Integrated biostratigraphy of the lower Silurian of the Kolka-54 core, Latvia

Published online by Cambridge University Press:  04 November 2009

D. K. LOYDELL ,
V. NESTOR  and
P. MÄNNIK
D. K. LOYDELL*
Affiliation:
School of Earth and Environmental Sciences, University of Portsmouth, Burnaby Road, Portsmouth PO1 3QL, UK
V. NESTOR
Affiliation:
Institute of Geology at Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
P. MÄNNIK
Affiliation:
Institute of Geology at Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
*
*Author for correspondence: [email protected]
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Abstract

Integrated graptolite, conodont and chitinozoan biostratigraphical data are presented from the Llandovery and Wenlock of the Kolka-54 core, Latvia. Correlations between graptolite and chitinozoan biozones are consistent with those published from other East Baltic sections and the Welsh Basin. While most correlations between graptolite and conodont biozones agree with those presented in previous studies, there are important exceptions. Significantly, we report here the discovery of Distomodus staurognathoides Biozone conodonts in the lowest Aeronian Demirastrites triangulatus graptolite Biozone. The base of the D. staurognathoides Biozone was previously considered to lie much higher in the Aeronian. Also it is shown that Walliserodus survived the late Wenlock Mulde Event, during which it was considered previously to have become extinct.

Keywords

graptoliteschitinozoanconodontsSilurianbiostratigraphyLlandoveryWenlock
Type
Original Article
Information
Geological Magazine , Volume 147 , Issue 2 , March 2010 , pp. 253 - 280
Copyright
Copyright © Cambridge University Press 2009

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References

Armstrong, H. A. 1990. Conodonts from the Upper Ordovician–Lower Silurian carbonate platform of North Greenland. Grønlands Geologiske Undersøgelse Bulletin 159, 1–151.CrossRefGoogle Scholar
Barrick, J. E. & Klapper, G. 1976. Multielement Silurian (late Llandoverian–Wenlockian) conodonts of the Clarita Formation, Arbuckle Mountains, Oklahoma, and phylogeny of Kockelella. Geologica et Palaeontologica 10, 59–100.Google Scholar
Bassett, M. G., Kaljo, D. & Teller, L. 1989. The Baltic region. In A Global Standard for the Silurian System (eds Holland, C. H. & Bassett, M. G.), pp. 158–70. National Museum of Wales, Geological Series no. 9.Google Scholar
Bischoff, G. C. O. 1986. Early and middle Silurian conodonts from midwestern New South Wales. Courier Forschungsinstitut Senckenberg 89, 1–337.Google Scholar
Calner, M. & Jeppsson, L. 2003. Carbonate platform evolution and conodont stratigraphy during the middle Silurian Mulde Event, Gotland, Sweden. Geological Magazine 140, 173–203.CrossRefGoogle Scholar
Eisenack, A. 1968. Über Chitinozoen des Baltischen Gebietes. Palaeontographica, Abteilung A 131, 137–98.Google Scholar
Grahn, Y. 1995. Silurian Chitinozoa and biostratigraphy of subsurface Gotland. GFF 117, 57–65.CrossRefGoogle Scholar
Grahn, Y. 1998. Lower Silurian (Llandovery–Middle Wenlock) biostratigraphy of the mainland of Sweden. GFF 120, 273–83.CrossRefGoogle Scholar
Grahn, Y. 2005. Silurian and Lower Devonian chitinozoan taxonomy and biostratigraphy of the Trombetas Group, Amazonas Basin, northern Brazil. Bulletin of Geosciences 80, 245–76.Google Scholar
Grahn, Y. 2006. Ordovician and Silurian chitinozoan biozones of western Gondwana. Geological Magazine 143, 509–29.CrossRefGoogle Scholar
Jeppsson, L. 1997 a. The anatomy of the mid-early Silurian Ireviken Event and a scenario for P-S events. In Paleontological events. Stratigraphic, ecological, and evolutionary implications (eds Brett, C. E. & Baird, G. C.), pp. 451–92. New York: Columbia University Press.Google Scholar
Jeppsson, L. 1997 b. A new latest Telychian, Sheinwoodian and early Homerian (early Silurian) standard conodont zonation. Transactions of the Royal Society of Edinburgh: Earth Sciences 88, 91–114.CrossRefGoogle Scholar
Jeppsson, L. & Calner, M. 2003. The Silurian Mulde Event and a scenario for secundo–secundo events. Transactions of the Royal Society of Edinburgh: Earth Sciences 93, 135–54.CrossRefGoogle Scholar
Jeppsson, L. & Männik, P. 1993. High-resolution correlations between Gotland and Estonia near the base of Wenlock. Terra Nova 5, 348–58.CrossRefGoogle Scholar
Kozłowska-Dawidziuk, A. 1995. Silurian retiolitids of the East European Platform. Acta Palaeontologica Polonica 40, 261–326.Google Scholar
Laufeld, S. 1974. Silurian Chitinozoa from Gotland. Fossils and Strata 5, 1–130.CrossRefGoogle Scholar
Loydell, D. K., Kaljo, D. & Männik, P. 1998. Integrated biostratigraphy of the lower Silurian of the Ohesaare core, Saaremaa, Estonia. Geological Magazine 135, 769–83.CrossRefGoogle Scholar
Loydell, D. K., Männik, P. & Nestor, V. 2003. Integrated biostratigraphy of the lower Silurian of the Aizpute-41 core, Latvia. Geological Magazine 140, 205–29.CrossRefGoogle Scholar
Loydell, D. K. & Nestor, V. 2005. Integrated graptolite and chitinozoan biostratigraphy of the upper Telychian (Llandovery, Silurian) of the Ventspils D-3 core, Latvia. Geological Magazine 142, 369–76.CrossRefGoogle Scholar
Männik, P. 1998. Evolution and taxonomy of the Silurian conodont Pterospathodus. Palaeontology 41, 1001–50.Google Scholar
Männik, P. 2007 a. Upper Ordovician and lower Silurian conodont biostratigraphy in Estonia: general overview of recent developments. Estonian Journal of Earth Sciences 56, 35–46.CrossRefGoogle Scholar
Männik, P. 2007 b. An updated Telychian (Late Llandovery, Silurian) conodont zonation based on Baltic faunas. Lethaia 40, 45–60.CrossRefGoogle Scholar
Männik, P. 2007 c. Some comments on the Telychian–early Sheinwoodian conodont faunas, events and stratigraphy. Acta Palaeontologica Sinica 46 (Suppl.), 305–10.Google Scholar
Männik, P. 2008. Conodont dating of some Telychian (Silurian) sections in Estonia. Estonian Journal of Earth Sciences 57, 156–69.CrossRefGoogle Scholar
Mullins, G. L. & Aldridge, R. J. 2004. Chitinozoan biostratigraphy of the basal Wenlock Series (Silurian) global stratotype section and point. Palaeontology 47, 745–73.CrossRefGoogle Scholar
Mullins, G. L. & Loydell, D. K. 2001. Integrated Silurian chitinozoan and graptolite biostratigraphy of the Banwy River section, Wales. Palaeontology 44, 731–81.CrossRefGoogle Scholar
Nestor, H. & Einasto, R. 1997. Ordovician and Silurian carbonate sedimentation basin. In Geology and mineral resources of Estonia (eds Raukas, A. & Teedumäe, A.), pp. 192–204. Tallinn: Estonian Academy Publishers.Google Scholar
Nestor, H., Einasto, R., Männik, P. & Nestor, V. 2003. Correlation of some lower–middle Llandovery reference sections in central and southern Estonia and sedimentation cycles of lime muds. Proceedings of the Estonian Academy of Sciences, Geology 52, 3–27.Google Scholar
Nestor, V. 1994. Early Silurian chitinozoans of Estonia and North Latvia. Academia 4, 1–163.Google Scholar
Nestor, V. 1998. Chitinozoan biofacies of late early Llandovery (Coronograptus cyphus) age in the East Baltic. Proceedings of Estonian Academy Sciences, Geology 47, 219–28.CrossRefGoogle Scholar
Nestor, V. 2005. Chitinozoans of the Margachitina margaritana Biozone and the Llandovery–Wenlock boundary in West Estonian drill cores. Proceedings of the Estonian Academy of Sciences, Geology 54, 87–111.CrossRefGoogle Scholar
Nestor, V. 2007. Chitinozoans in the Wenlock-Ludlow boundary beds of the East Baltic. Estonian Journal of Earth Sciences 56, 109–28.CrossRefGoogle Scholar
Nestor, V., Einasto, R. & Loydell, D. K. 2002. Chitinozoan biostratigraphy and lithological characteristics of the Lower and Upper Visby boundary beds in the Ireviken 3 section, Northwest Gotland. Proceedings of Estonian Academy of Sciences, Geology 51, 215–26.Google Scholar
Põldvere, A. (ed.) 2003. Ruhnu (500) drill core. Estonian Geological Sections, Bulletin 5, 1–76, pls 1–3, 30 appendices on CD-ROM.Google Scholar
Rickards, R. B. 1967. The Wenlock and Ludlow succession in the Howgill Fells (north-west Yorkshire and Westmorland). Quarterly Journal of the Geological Society of London 123, 215–51.CrossRefGoogle Scholar
Soufiane, A. & Achab, A. 2000. Upper Ordovician and lower Silurian chitinozoans from central Nevada and Arctic Canada. Review of Palaeobotany and Palynology 113, 165–87.CrossRefGoogle ScholarPubMed
Swire, P. H. 1990. New chitinozoan taxa from the lower Wenlock (Silurian) of the Welsh Borderlands, England. Journal of Micropalaeontology 9, 107–13.CrossRefGoogle Scholar
Verniers, J. 1999. Calibration of Chitinozoa versus graptolite biozonation in the Wenlock of Builth Wells district (Wales, U.K.), compared with other areas in Avalonia and Baltica. Bollettino della Società Paleontologica Italiana 38, 359–80.Google Scholar
Verniers, J., Nestor, V., Paris, F., Dufka, P., Sutherland, S. & Van Grootel, G. 1995. A global Chitinozoa biozonation for the Silurian. Geological Magazine 132, 651–66.CrossRefGoogle Scholar
Verniers, J., Van Grootel, G., Louwye, S. & Diependaele, B. 2002. The chitinozoan biostratigraphy of the Silurian of the Ronquiéres-Monstreux area (Brabant Massif, Belgium). Review of Palaeobotany and Palynology 118, 287–322.CrossRefGoogle Scholar
White, D. E., Barron, H. F., Barnes, R. P. & Lintern, B. C. 1992. Biostratigraphy of late Llandovery (Telychian) and Wenlock turbiditic sequences in the SW Southern Uplands, Scotland. Transactions of the Royal Society of Edinburgh: Earth Sciences 82, 297–322.CrossRefGoogle Scholar
Zalasiewicz, J. & Williams, M. 1999. Graptolite biozonation of the Wenlock Series (Silurian) of the Builth Wells district, central Wales. Geological Magazine 136, 263–83.CrossRefGoogle Scholar