Paraconodont Westergaardodina in the Lower Ordovician of the Prague Basin, Czech Republic

 

Authors: Mergl M

Published in: Bulletin of Geosciences, volume 81, issue 4; pages: 305 - 308; Received 23 January 2006; Accepted in revised form 12 October 2006;

Keywords: Paraconodonta, Westergaardodina, Ordovician, Tremadocian, Prague Basin, Czech Republic,

full text (PDF, 0.15 MB)

Export to RIS

 

Abstract

The morphology of elements of the paraconodont genus Westergaardodina found in the Early Ordovician deposits of Bohemia resembles that of the Late Cambrian species W. bicuspidata and W. polymorpha. The presence of Westergaardodina is consistent with the suggested Upper Tremadocian age of its horizon, as reworking of the Upper Cambrian sediment seems unlikely for geological and taphonomic reasons. This is the first report of this genus from the Ordovician in the European part of peri-Gondwana.

References

Abaimova, G.P. 1983. Konodonty i drugie problematitscheskiye ostatki srednego–verchnego kembrija Malogo Karatau, 96–104. In Appolonov, M.K., Bandaletov, S.M. & Ivshin, N.K. (eds) Stratigrafiya i paleontologiya nizhnego paleozoya Kazakhstana. Izdatelstvo Nauka Kazakhskoy SSR, Alma-Ata.

Baitorina, T.B. 1983. Nekotoryie konodonty verchnego kembriya i nizhnego ordovika iz stratotipitscheskogo razreza r. Kirshabakti v Malom Karatau, 104–110. In Appolonov, M.K., Bandaletov, S.M.&Ivshin, N.K. (eds) Stratigrafiya i paleontologiya nizhnego paleozoya Kazakhstana. Izdatelstvo Nauka Kazakhskoy SSR, Alma-Ata.

Bednarczyk, W. 1979. Upper Cambrian to Lower Ordovician conodonts of Leba elevation, NW Poland, and their stratigraphic significance. Acta Geologica Polonica 29(4), 409–422.

Bednarczyk, W. 1997. Ordovician conodont biostratigraphy of the Polish part of the Baltic Syneclise. Palaeontologia Polonica 58, 107–121.

Bednarczyk, W. 1999. Significance of the genus Thysanotos Mickwitz, 1896 for the Ordovician stratigraphy of East-Central Europe. Bulletin of the Polish Academy of Sciences, Earth Sciences 47(1), 15–25.

Bulman, O.M.B. & Rushton, A.W.A. 1973. Tremadoc faunas from boreholes in Central England. Geological Survey of Great Britain, Bulletin 43, 1–40.

Dong, X.-P. & Bergström, S.M. 2001. Middle and Upper Cambrian protoconodonts and paraconodonts from Hunan, South China. Palaeontology 44, 949–985.View article

Dong, X.-P., Repetski, J.E. & Bergström, S.M. 2004. Conodont biostratigraphy of the middle Cambrian through lowermost Ordovician in Hunan, South China. Acta Geologica Sinica 78(6), 1185–1206.

Druce, E.C. & Jones, P.J. 1971. Cambro-Ordovician conodonts from the Burke River structural belt Queensland. Bureau of Mineral Resources, Geology and Geophysics, Bulletin 110, 1–159.

Dzik, J. 1976. Remarks on the evolution of Ordovician conodonts. Acta Palaeontologica Polonica 23, 51–72.

Dzik, J., Olempska, E. & Pisera, A. 1994. Ordovician carbonate platform ecosystem of the Holy Cross Mountains. Palaeontologia Polonica 53, 1–318.

Eichwald, E. 1840. Über das silurische Schichten-System von Esthland. 210 pp. St. Petersburg.

Fortey, R.A., Landing, E. & Skevington, D. 1982. Cambrian-Ordovician boundary section in the Cow Head Group, Western Newfoundland, 95–129. In Bassett, M.G. & Dean, W.T. (eds) The Cambrian-Ordovician boundary: sections, fossil distributions, and correlations. National Museum of Wales, Geological Series 3.

Gorjansky, V.J. 1969. Bezzamkovyje brachiopody kembriyskich i ordovikskich otlozheniy severo-zapada Russkoj platformy. Ministerstvo geologii RSFSR, Severo-zapadnoye territorialnyje geologitcheskoye upravleniye 6, 3–176.

Havlíček, V. 1992. Příbramsko-jinecká pánev, 19–38. In Chlupáč, I., Havlíček, V., Kříž, J., Kukal, Z. & Štorch, P. Paleozoikum Barrandienu (kambrium–devon). Český geologický ústav, Praha.

Kraft, J. & Mergl, M. 1979. New graptolite fauna from the Klabava Formation (Arenig) of the Ordovician of Bohemia. Věstník Ústředního ústavu geologického 54, 291–295.

Mergl, M. 1984. Fauna of the Upper Tremadocian of central Bohemia. Sborník geologických věd, Paleontologie 26, 9–46.

Mergl, M. 1986. The Lower Ordovician (Tremadoc-Arenig) Leptembolon Community in the Komárov area (SW part of the Prague Basin; Bohemia). Folia Musei rerum naturalium Bohemiae occidentalis, Geologica 24, 1–34.

Mergl, M. 1994. Trilobite fauna from the Třenice Formation (Tremadoc) in Central Bohemia. Folia Musei rerum naturalium Bohemiae occidentalis, Geologica 39, 1–31.

Mergl, M. 1997. Distribution of lingulate brachiopod Thysanotos in Central Europe. Věstník Českého geologického ústavu 72(1), 27–35.

Mergl, M. 2002. Linguliformean and craniiformean brachiopods of the Ordovician (Třenice to Dobrotivá Formations) of the Barrandian, Bohemia. Acta Musei nationalis Pragae, Series B 58(1–2), 1–82.

Mergl, M. 2006. Tremadocian Trilobites of the Prague Basin, Czech Republic. Acta Musei nationalis Pragae, Series B 62(1–2), 1–70.

Mergl, M. & Duršpek, J. 2006. Sponge spicules and radiolarians from the Olešná Member of the Klabava Formation (Ordovician, Prague Basin, Czech Republic). Bulletin of Geosciences 81(1), 17–26.View article

Müller, J.K. 1959. Kambrische Conodonten. Zeitschrift der Deutschen Geologischen Gesellschaft 111, 434–485.

Müller, J.K. 1973. Late Cambrian and early Ordovician conodonts from northern Iran. Geological Survey Iran, Reports 30, 1–76.

Müller, J.K. & Hinz, I. 1991. Upper Cambrian conodonts from Sweden. Fossils and Strata 28, 1–153.

Nogami, Y. 1967. Kambrische Conodonten von China, Teil 1, Conodonten aus den oberkambrischen Kushan-Schichten. Memoirs of the College of Science, Series B 33, 211–218.

Popov, L.E. & Holmer, L. 1994. Cambrian-Ordovician lingulate brachiopods from Scandinavia, Kazakhstan, and South Ural Mountains. Fossils and Strata 35, 1–156.

Popov, L.E., Khazanovitch, K.K., Borovko, N.G., Sergeeva, C.P. & Sobolevskaya, R.F. 1989. Opornyje razrezy i stratigraphia kembro-ordovikskoj fosforitonosnoj obolovoj tolstchi na severo-zapade Russkoj Platformy. Academy of Sciences of the USSR, Ministry of Geology of the USSR, Transactions 18, 1–222.

Sdzuy, K. 1955. Die Fauna der Leimitz Schiefer (Tremadoc). Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 492, 1–74.

Szaniawski, H. 1971. New species of Upper Cambrian conodonts from Poland. Acta Paleontologica Polonica 16(4), 401–413.

Szaniawski, H. 1980. Conodonts from the Tremadocian Chalcedony Beds, Holy Cross Mountains (Poland). Acta Palaeontologica Polonica 25(1), 101–121.