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  Estonian Journal of Earth Sciences

ISSN 1736-7557 (electronic)  ISSN 1736-4728 (print)
An international scientific journal

Formerly: Proceedings of the Estonian Academy of Sciences, Geology
Published since 1952

Estonian Journal of Earth Sciences

ISSN 1736-7557 (electronic)  ISSN 1736-4728 (print)
An international scientific journal

Formerly: Proceedings of the Estonian Academy of Sciences, Geology
Published since 1952

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Chitinozoan diversity in the East Baltic Silurian; pp. 311–316

(Full article in PDF format) doi: 10.3176/earth.2009.4.09


Authors

Viiu Nestor

Abstract

Data on the diversity of the East Baltic Silurian chitinozoans have been compared to global chitinozoan biozones that are approximately correlated with the graptolite scale. The total diversity and balanced total diversity curves have three main positive peaks in the Wenlock and Ludlow and diversity lowstands in most of the Llandovery and Pridoli. The turnover ratio and species origination curves are lowest and species extinction is highest in the lower Wenlock, correlating partly with the Ireviken Event. Chitinozoan diversity is related to the transgression–regression phases of the Silurian Baltic basin, water chemistry and temperature, and evolutionary processes of the faunal group. At the level of the Silurian standard stages the trends in the East Baltic and Swedish chitinozoan diversity curves are in general outline similar to the global diversity curve.

Keywords

Silurian, East Baltic, chitinozoans, diversity.

References

Achab , A. & Paris , F. 2007. The Ordovician chitinozoan bio­diversification and its leading factors. Palaeogeography , Palaeoclimatology , Palaeoecology , 245 , 5–19.
doi:10.1016/j.palaeo.2006.02.030

Gailite , L. , Ulst , R. & Jakovleva , V. 1987. Stratotipicheskie i tipovye razrezy silura Latvii [Stratotype and type sections of the Silurian of Latvia]. Zinatne , Riga , 182 pp. [in Russian].

Grahn , Y. 1995. Silurian Chitinozoa and biostratigraphy of subsurface Gotland. GFF , 117 , 57–65.

Grahn , Y. 1996. Upper Silurian (Upper Wenlock–Lower Pridoli) Chitinozoa and biostratigraphy of Skåne , southern Sweden. GFF , 118 , 237–250.

Grahn , Y. 1998. Lower Silurian (Llandovery–Middle Wenlock) biostratigraphy of the mainland of Sweden. GFF , 120 , 273–283.

Grahn , Y. & Caputo , M. V. 1992. Early Silurian glaciation in Brazil. Palaeogeography , Palaeoclimatology , Palaeo­ecology , 99 , 9–15.
doi:10.1016/0031-0182(92)90003-N

Johnson , M. E. , Kaljo , D. & Mckerrow , W. S. 1991. Sea level and faunal changes during the latest Llandovery and earliest Ludlow (Silurian). Historical Biology , 5 , 153–169.
doi:10.1080/10292389109380398

Kaljo , D. (ed.). 1970. Silur Éstonii [The Silurian of Estonia]. Valgus , Tallinn , 343 pp. [in Russian , with English summary].

Kaljo , D. , Paškevičius , J. & Ulst , R. 1984. Graptolite zones of the East Baltic Silurian. In Stratigraphy of Early Paleozoic Sediments of the East Baltic (Männil , R. & Mens , K. , eds) , pp. 94–118. Academy of Sciences of the Estonian SSR , Tallinn [in Russian , with English summary].

Kaljo , D. , Boucot , A. J. , Corfield , R. M. , Le Herisse , A. , Koren , T. N. , Kriz , J. , Männik , P. , Märss , T. , Nestor , V. , Shaver , R. H. , Siveter , D. J. & Viira , V. 1995. Silurian bio-events. In Global Events and Event Stratigraphy in the Phanerozoic (Walliser , O. H. , ed.) , pp. 173–224. Springer , Berlin.

Kaljo , D. , Kiipli , T. & Martma , T. 1998. Correlation of carbon isotope events and environmental cyclicity in the East Baltic Silurian. In Silurian Cycles – Linkages of DynamicStratigraphy with Atmospheric , Oceanic and Tectonic Changes (Landing , E. & Johnson , M. , eds) , New York State Museum Bulletin , 491 , 297–312.

Koren , T. , Lenz , A. C. , Loydell , D. K. , Melchin , M. J. , Štorch , P. & Teller , L. 1996. Generalized graptolite zonal sequence defining Silurian time intervals for global paleogeo­graphic studies. Lethaia , 29 , 59–69.
doi:10.1111/j.1502-3931.1996.tb01837.x

Laufeld , S. 1974. Silurian Chitinozoa from Gotland. Fossils and Strata , 5 , 1–130.

Loydell , D. K. 2007. Early Silurian positive δ13C excursions and their relationship to glaciations , sea-level changes and extinction events. Geological Journal , 42 , 531–546.
doi:10.1002/gj.1090

Loydell , D. K. , Kaljo , D. & Männik , P. 1998. Integrated bio­stratigraphy of the lower Silurian of the Ohesaare core , Saaremaa , Estonia. Geological Magazine , 135 , 769–783.
doi:10.1017/S0016756898001423

Loydell , D. K. , Männik , P. & Nestor , V. 2003. Integrated bio­stratigraphy of the lower Silurian of the Aizpute-41 core , Latvia. Geological Magazine , 140 , 205–229.
doi:10.1017/S0016756802007264

Melchin , M. J. , Koren , T. N. & Štorch , P. 1998. Global diversity and survivorship patterns of Silurian graptoloids. In Silurian Cycles – Linkages of Dynamic Stratigraphy with Atmospheric , Oceanic and Tectonic Changes (Landing , E. & Johnson , M. E. , eds) , New York State Museum Bulletin , 491 , 165–182.

Nestor , H. & Nestor , V. 2002. Upper Llandovery to middle Wenlock (Silurian) lithostratigraphy and chitinozoan biostratigraphy in southwestern Estonia and northern­most Latvia. Proceedings of the Estonian Academy of Sciences , Geology ,51 , 67–87.

Nestor , H. , Einasto , R. , Männik , P. & Nestor , V. 2003. Correlation of lower–middle Llandovery sections in central and southern Estonia and sedimentation cycles of lime muds. Proceedings of the Estonian Academy of Sciences , Geology , 52 , 3–27.

Nestor , V. 1992. Chitinozoan diversity dynamics in the East Baltic Silurian. Proceedings of the Estonian Academy of Sciences , Geology , 41 , 215–224.

Nestor , V. 1994. Early Silurian chitinozoans of Estonia and North Latvia. Academia , 4 , 1–163.

Nestor , V. 2003. Distribution of Silurian chitinozoans. In Ruhnu (500) Drill Core (Põldvere , A. , ed.) , Estonian Geological Sections , 5 , 13–14.

Nestor , V. 2005. Chitinozoans of the Margachitina margaritanaBiozone and the Llandovery–Wenlock boundary in West Estonian drill cores. Proceedings of the Estonian Academy of Sciences , Geology , 54 , 87–111.

Nestor , V. 2007. Chitinozoans in the Wenlock–Ludlow boundary beds of the East Baltic. Estonian Journal of Earth Sciences , 56 , 109–128.

Nestor , V. 2009. Biostratigraphy of the Ludlow chitinozoans from East Baltic drill cores. Estonian Journal of Earth Sciences , 58 , 170–184.
doi:10.3176/earth.2009.3.02

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 the Estonian Academy of Sciences , Geology , 51 , 215–226.

Paris , F. & Nõlvak , J. 1999. Biological interpretation and paleobiodiversity of a cryptic fossil group: the “chitinozoan animal”. Geobios , 32 , 315–324.
doi:10.1016/S0016-6995(99)80045-X

Paris , F. , Achab , A. , Asselin , E. , Chen , X.-H. , Grahn , Y. , Nõlvak , J. , Obut , O. , Samuelsson , J. , Sennikof , N. , Vecoli , M. , Verniers , J. , Wang , X.-F. & Winchester-Seeto , T. 2004. Chitinozoa. In The Great Ordovician Diversification Event (Webby , B. D. , Paris , F. , Droser , M. & Percival , I. , eds) , pp. 294–311. Columbia University Press , New York.

Verniers , J. , Nestor , V. , Paris , F. , Dufka , P. , Sutherland , S. & Van Grootel , G. 1995. A global Chitinozoa biozonation for the Silurian. Geological Magazine , 132 , 651–666.
doi:10.1017/S0016756800018896

 
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