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Five new genera of Late Ordovician-Early Silurian brachiopods from Anticosti Island, eastern Canada

Published online by Cambridge University Press:  20 May 2016

Paul Copper*
Affiliation:
Laurentian University, Sudbury, Canada P3E 2C6

Abstract

Uninterrupted, ~800 m thick, Ashgill through Llandovery carbonate strata from Anticosti Island (eastern Canada) reveal five new brachiopod genera, enhancing present knowledge about the early evolution of the spire-bearing order Atrypida, spanning some 10.2 million years of time, and a global mass extinction crisis. New taxa include smooth-shelled forms such as the Late Ordovician genus Xysila, type X. astaca n. sp., and two new Early Silurian genera, Becscia, type B. scissura n. sp., and Cerasina, type C. pycnata n. sp. New costate genera include the Early Silurian reef-dwelling form Dihelictera, type D. acrolopha n. sp., and a deeper water inhabitant, Joviatrypa, type J. brabyla n. sp. For comparison with these new taxa, the spiralia and jugal processes of the type species of the Llandovery genera Protatrypa and Meifodia are illustrated and described for the first time.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

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References

Berry, W. B. N., and Boucot, A. J. 1970. Correlation of the North American Silurian rocks. Geological Society of America, Special Paper 102, 289 p.Google Scholar
Billings, E. 1862. On some new species of fossils from the Quebec Group; containing descriptions and figures of new or little known species of organic remains from the Silurian rocks. Palaeozoic fossils, Geological Survey of Canada, 1:57168.Google Scholar
Billings, E. 1866. Catalogue of Silurian fossils of the island of Anticosti, with descriptions of some new genera and species. Geological Survey of Canada Publications, 427:193.Google Scholar
Borisyak, M. A. 1955. Siluriiski (Venlokskie) brakhiopody iz Karagandinskoi Oblasti [Silurian (Wenlock) brachiopods from the Karaganda Region]. Materialy po stratigrafii i faune ordovikskikh i siluriskikh otlozhenii tsentralnogo Kazakhstana, VSEGEI, Novaya Seriya 3, 107 p.Google Scholar
Boucot, A. J., Johnson, J. G., and Staton, R. D. 1964. On some atrypoid, retzioid and athyridoid Brachiopoda. Journal of Paleontology, 38:805822.Google Scholar
Bublichenko, N. L. 1927. Fauna brakhiopod Nizhnego Paleozoya orkestnostei s. Sara-Chumyshkogo (Kuznetskii Bassein) [The brachiopod fauna of the lower Paleozoic from the area around Sara-Chumysh (Kuznetsk Basin)]. Bulletin Komitet Geologii, 46:9791008.Google Scholar
Chernyshev, T. 1885. Die Fauna des untern Devon am West-Abhange des Urals. Trudy Geologicheskii Komitet, 3, 107 p.Google Scholar
Clarke, J. M. 1913. Fosseis devonianos do Paraná. Monographias do Servico Geologico e Mineralogico do Brasil, 1, 353 p.Google Scholar
Cocks, L. R. M. 1989. The Llandovery Series in the Llandovery area, p. 3650. In Holland, C. H. and Bassett, M. G. (eds.), A global standard for the Silurian System. National Museum of Wales, Geological Series, 10.Google Scholar
Copper, P. 1973. The type species of Lissatrypa (Silurian Brachiopoda). Journal of Paleontology, 47:7076.Google Scholar
Copper, P. 1977. Zygospira and some related Ordovician and Silurian atrypoid brachiopods. Palaeontology, 20:295335.Google Scholar
Copper, P. 1981. Atrypoid brachiopods and their distribution in the Ordovician–Silurian sequence of Anticosti island. Field meeting Anticosti-Gaspé, Québec 1981. Subcommission on Silurian stratigraphy, Geological Survey of Canada, Ottawa, 2:137–42.Google Scholar
Copper, P. 1982. Early Silurian atrypoids from Manitoulin Island and Bruce Peninsula, Ontario. Journal of Paleontology, 56:680702.Google Scholar
Copper, P. 1986a. Filter-feeding and evolution in early spire-bearing brachiopods. Biostratigraphie du Paléozoique, 4:219230.Google Scholar
Copper, P. 1986b. Evolution of the earliest smooth spire-bearing atrypoids (Brachiopoda: Lissatrypidae, Ordovician–Silurian). Palaeontology, 29:827866.Google Scholar
Copper, P., and Long, D. G. F. 1989. Stratigraphic revisions for a key Ordovician–Silurian boundary section, Anticosti Island, Canada. Newsletters in Stratigraphy, 21:5973.Google Scholar
Copper, P., and Long, D. G. F. 1990. Stratigraphic revision of the Jupiter Formation, Anticosti Island, Canada: a major reference section above the Ordovician–Silurian boundary. Newsletters in Stratigraphy, 23:1136.Google Scholar
Davidson, T. 1869. A monograph of the British fossil Brachiopoda, the Silurian Brachiopoda. Palaeontographical Society Monographs, 7(3):169248.Google Scholar
Foerste, A. F. 1919. Silurian fossils from Ohio, with notes on related species from other horizons. Ohio Journal of Science, 19:367404.Google Scholar
Gill, T. 1871. Arrangement of the family of molluscs prepared for the Smithsonian Institution. Smithsonian Miscellaneous Collections, 227, 49 p.Google Scholar
Hall, J. 1852. Containing descriptions of the organic remains of the lower middle division of the New York System. Palaeontology of New York, 2, 362 p.Google Scholar
Hall, J., and Clarke, J. M. 1893. An introduction to the study of the genera of Paleozoic Brachiopoda. New York State Geological Survey, 8 (Part 2), 317 p.Google Scholar
Harland, W. B., Armstrong, R. L., Cox, A. V., Craig, L. E., Smith, A. G., and Smith, D. G. 1990. A Geologic Time Scale 1989. Cambridge University Press, Cambridge, U.K., 263 p.Google Scholar
Havlicek, V. 1990. Sedimentology, benthic communities, and brachiopods in the Suchomasty (Dalejan) and Acanthopyge (Eifelian) limestones of the Koneprusy area (Czechoslovakia). Sbornik geologicky Vednik, Paleontologi, 31:105205.Google Scholar
Jisuo, Jin 1984. Early Silurian pentamerids from Anticosti island. Unpubl. , Laurentian University, Sudbury, 108 p.Google Scholar
Jisuo, Jin 1989. Late Ordovician–Early Silurian rhynchonellid brachiopods from Anticosti Island, Quebec. Biostratigraphie du Paléozoique 10, 217 p.Google Scholar
Jisuo, Jin, Caldwell, W. G. E., and Norford, B. S. 1993. Early Silurian brachiopods and biostratigraphy of the Hudson Bay Lowlands, Manitoba, Ontario, and Quebec. Geological Survey of Canada, Bulletin 457, 221 p.Google Scholar
Kozlowski, R. 1929. Les brachiopodes gothlandiens de la Podolie polonaise. Palaeontologia Polonica, 1, 245 p.Google Scholar
Xueping, Ma. 1984. The brachiopod genus Eocoelia in the Early Silunari of Anticosti Island. Unpubl. , Laurentian University, Sudbury, 79 p.Google Scholar
M'Coy, F. 1851. On some new Cambro-Silurian fossils. Annals and Magazine of Natural History, 8:387409.CrossRefGoogle Scholar
Mizens, L. I. and Sapelnikov, V. P. 1982. Rebristye siluriiskie i lokhkovskie atripidy vostochnogo sklona Urala [Ribbed Silurian and Lochkovian atrypids from the eastern slopes of the Urals]. Akademiya Nauk SSSR, Uralskii nauchnyi tsentr, Sverdlovsk, 40 p.Google Scholar
Moore, R. C. 1952. Brachiopoda, p. 197267. In Moore, R. C., Lalicker, C. G., and Fischer, A. G. Invertebrate Fossils. McGraw-Hill, New York.Google Scholar
Muir-Wood, H. M. 1955. A History of the Classification of the Phylum Brachiopoda. British Museum of Natural History, London, 124 p.Google Scholar
Nikiforova, O. I. 1941. O nekotorykh brakhiopodakh verkhnego Silura basseina rek Khety i Khandygy [On some brachiopods from the Upper Silurian of the Kheta and Khandyga river basins (Siberia)]. Trudy Arktiki nauchno-issledovatelskogo Institut, 158:103120.Google Scholar
Nikiforova, O. I. 1949. Polevoi atlas rukovodyashchikh brakhiopod verkhnego Silura Kirgizskoi SSR [Field atlas of the index brachiopods of the upper Silurian of Kirgiz SSR]. Kirgizskii Filial Akademii Nauk SSSR, Geologicheskii Institut, Frunze, 52 p.Google Scholar
Nikiforova, O. I. 1961. Opisanie brakhiopod [Descriptions of brachiopods], p. 69290. In Nikiforova, O. I. and Andreeva, O. N., Stratigrafiya Ordovika i Silura Sibirskoi Platformy i ee Paleontologicheskoe obosnovanie [Stratigraphy of the Ordovician and Silurian of the Siberian Platform and its paleontological basis], 1. Trudy Vsesoyuznogo nauchno-issledovatelskogo Geologicheskogo Instituta.Google Scholar
Nikiforova, O. I., and Modzalevskaya, T. L. 1968. Nekotorye Landoveriiskie i Venlokskie brakhiopody severo-zapadnoi chasti Sibirskoi Platformy [Some Llandovery and Wenlock brachiopods from the northwestern part of the Siberian Platform]. Uchenye Zapiski, Nauchno-issledovatelskii Institut Geologii Arktiki, 21:5081.Google Scholar
Percival, I. G. 1991. Late Ordovician articulate brachiopods from central New South Wales. Memoirs Australasian Association of Palaeontologists, 11:107177.Google Scholar
Racheboeuf, P. R. and Copper, P. 1988. The oldest chonetacean brachiopods (Ordovician–Silurian, Anticosti Island, Quebéc). Canadian Journal of Earth Sciences, 23:12971308.Google Scholar
Richardson, J. 1857. Report for the year 1856. Geological Survey of Canada, Reports of Progress 1853-1856:191245.Google Scholar
Rzhonsnitskaya, M. A. 1960. Otryad Atrypida [Order Atrypida], p. 257264. In Sarycheva, T. G. (ed.), Mshanki, Brakhiopody [Bryozoans, brachiopods]. Osnovy Paleontologii, Moskva.Google Scholar
Schuchert, C. 1913. Class 2, Brachiopoda, p. 355420. In Zittel, K. A., Textbook of Palaeontology, 1. Macmillan and Co., London.Google Scholar
Schuchert, C., and Levene, C. M. 1929. Brachiopoda (Generum et Genotyporum Index et Bibliographia). Fossilium Catalogus, 1 (Animalia), Berlin, 42, 140 p.Google Scholar
Struve, W. 1966. Einige Atrypinae aus dem Silurium und Devon. Senckenbergiana lethaea, 47:123163.Google Scholar
Thomsen, E., and Baarli, B. G. 1982. Brachiopods of the lower Llandovery Saelabonn and Solvik Formations of the Ringerike, Asker and Oslo districts, p. 6378. In Worsley, D. (ed.), Field meeting Oslo region. Paleontological Contributions from the University of Oslo, 278.Google Scholar
Twenhofel, W. H. 1914. The Anticosti Island faunas. Canada Department of Mines, Museum Bulletin, 3, 39 p.Google Scholar
Twenhofel, W. H. 1928. Geology of Anticosti Island. Geological Survey of Canada, Memoirs, 154, 481 p.Google Scholar
Williams, A. 1951. Llandovery brachiopods from Wales with special reference to the Llandovery District. Quarterly Journal of the Geological Society of London, 107:85136.CrossRefGoogle Scholar
Worsley, D. 1989. The Llandovery Series in the Oslo region, p. 108115. In Holland, C. H. and Bassett, M. G. (eds.), A global standard for the Silurian System. National Museum of Wales, Geological Series 10.Google Scholar
Hankui, Xu. 1979. Brachiopoda, p. 60217. In Jin, Yugan, Ye, Songli, Xu, Hankui, and Sun, Donglin, Paleontological Atlas of Northwest China, Qinghai, 1. Geological Publishing House, Beijing.Google Scholar