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Undulograptus dicellograptoides n. sp., an abnormal diplograptid from the Late Arenig of western Newfoundland, Canada

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Kurzfassung

Die ungewöhnliche diplograptide GraptolithenartUndulograptus dicellograptoides n. sp. aus derUndulograptus dentatus Zone des späten Arenigs des westlichen Neufundlands wird nach chemisch aus Schiefern isoliertem Material beschrieben. Die Art besitzt zwei reklinate Äste und erinnert in der Rhabdosomform an die stratigraphisch jüngere GattungDicellograptus. Ein mehrfacher, unabhängiger Ursprung der Entwicklung dicellograptider bis dicranograptider Rhabdosomformen in den Diplograptina wird diskutiert.

Abstract

The unusual diplograptidUndulograptus dicellograptoides n. sp. from the late ArenigUndulograptus dentatus Zone of western Newfoundland is described from isolated material. The species bears two reclined stipes and resembles a species of the stratigraphically younger genusDicellograptus. The dicellograptid to dicranograptid rhabdosome form appeared several times independently in the Diplograptina.

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References

  • Boucek, B. 1973. Lower Ordovician graptolites of Bohemia. - 185 pp., Prague (Publishing House of the Czechoslovak Academy of Sciences).

    Google Scholar 

  • Finney, S.C. 1977. Graptolites of the Middle Ordovician Athens Shale, Alabama. - Ph.D. thesis, Ohio State University, Columbus/Ohio.

    Google Scholar 

  • — 1990. Phylogenetic classification of the Dicranograptacea (Nemagraptidae and Dicranograptidae). - [In:]Ni, Yunan &Fang, Yiting [eds.] Abstracts and Excursion. 4th International Conference of the Graptolite Working Group, International Palaeontological Association, Nanjing 1990: 15–16, Nanjing (Palaeontological Society of China).

    Google Scholar 

  • Ge, M.;Zheng, Z. &Yuzhen, L. 1990. Research of the Ordovician and Silurian graptolites and graptolite-bearing strata from Ningxia and the neighbouring districts. - 190 pp., 64 pls., Nanjing (Nanjing University Press).

    Google Scholar 

  • Hopkinson, J. &Lapworth, C. 1875. Descriptions of the graptolites of the Arenig and Llandeilo rocks of St. David’s. - Quarterly Journal of the Geological Society of London31: 631–672, pls. 33–37, London.

    Article  Google Scholar 

  • James, N.P. &Stevens, R.K. 1986. Stratigraphy and correlation of the Cambro-Ordovician Cow Head Group, western Newfoundland. - Geological Survey of Canada Bulletin366: 1–143, Toronto.

    Google Scholar 

  • Jenkins, C. 1980.Maeandrograptus schmalenseei and its bearing on the origin of the diplograptids. - Lethaia13: 289–302, Oslo.

    Article  Google Scholar 

  • Lapworth, C. 1873. On an improved classification of the Rhabdophora. - Geological Magazine10: 500–504, 555–560, London.

    Google Scholar 

  • Lenz, A.C. 1993. A new Silurian retiolitid graptolite from Arctic Canada. - Journal of Paleontology67: 160–162, Ithaca, N.Y.

    Google Scholar 

  • Maletz, J. 1997. Arenig biostratigraphy of the Pointe-de-Lévy slice, Quebec Appalachians, Canada. - Canadian Journal of Earth Sciences34: 733–752, Toronto.

    Article  Google Scholar 

  • Melchin, M.J. &Mitchell, C.E. 1991. Late Ordovician extinction in the Graptoloidea. - [In:]Barnes, C.R. &Williams, S.H. [eds.] Advances in Ordovician Geology. - Geological Survey of Canada Paper 90-9: 143–156, Toronto.

    Google Scholar 

  • Mitchell, C.E. 1987. Evolution and phylogenetic classification of the Diplograptacea. - Palaeontology30: 353–405, London.

    Google Scholar 

  • — 1988. The morphology and ultrastructure ofBrevigraptus quadrithecatus n. gen., n. sp. (Diplograptacea), and its convergence uponDicaulograptus hystrix (Bulman). - Journal of Paleontology62: 448–463, Ithaca, N.Y.

    Google Scholar 

  • — 1994. Astogeny and rhabdosome architecture of graptolites of theUndulograptus austrodentatus species group. - [In:]Chen, X.;Erdtmann, B.-D. &Ni, Y. [eds.] Graptolite research today: 49–60, Beijing.

    Google Scholar 

  • Mitchell, C.E. &Maletz, J. 1995. Proposal for adoption of the base of theUndulograptus austrodentatus Biozone as a global Ordovician stage and series boundary level. - Lethaia28: 317–331, Oslo.

    Article  Google Scholar 

  • Mitchell, C.E.;Maletz, J. &Zhang, Y.-D. 1995. Evolutionary origins of the Diplograptacea.- [In:]Cooper, J.D.;Droser, M.L. &Finney, S.C. [eds.] Ordovician Odyssey: Short Papers for the 7th International Symposium on the Ordovician System. - The Pacific Section Society for Sedimentary Geology (SEPM) Book 77: 401–404, Fullerton.

    Google Scholar 

  • Storch, P. &Loydell, D.K. 1996. The Hirnantian graptolitesNormalograptus persculptus and ‘Glyptograptus’bohemicus: stratigraphical consequences of their synonymy. - Palaeontology39: 869–881, London.

    Google Scholar 

  • Strachan, I. 1954. The structure and development ofPeiragraptus fallax, gen. et sp. nov. A new graptolite from the Ordovician of Canada. - Geological Magazine41: 509–513, London.

    Article  Google Scholar 

  • Williams, S.H. &Stevens, R.K. 1988. Early Ordovician (Arenig) graptolites from the Cow Head Group, western Newfoundland. - Palaeontographica Canadiana5: 1–167, 34 pls., Toronto.

    Google Scholar 

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  1. Institut für Geologische Wissenschaften, Ernst-Moritz-Arndt-Universität Greifswald, Friedrich-Ludwig-Jahn-Str. 17a, D-17489, Greifswald, Germany

    Jörg Maletz

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  1. Jörg Maletz
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Maletz, J. Undulograptus dicellograptoides n. sp., an abnormal diplograptid from the Late Arenig of western Newfoundland, Canada. Paläontol Z 72, 111–116 (1998). https://doi.org/10.1007/BF02987820

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  • DOI: https://doi.org/10.1007/BF02987820

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