Concentration of juvenile and small cephalopods in the Hirnantian cherts [Late Ordovician] of Porkuni, Estonia

• Autorzy: Kroger B
• Języki publikacji: EN

Abstrakty

EN

The quarry in the north Estonian village of Porkuni provides a succession of shallow−water limestones and cherts spanning the Ashgillian Normalograptus? extraordinarius graptolite Biozone. This interval comprises the initial pulse of the end−Ordovician extinction. The succession of Porkuni contains abundant and extraordinarily well−preserved fossils. 71 cephalopod specimens were extracted from these strata at Porkuni. Many of these specimens are fragments of juvenile shells or small adults. The embryonic shells of the cephalopods are usually preserved and provide insight into their early ontogeny. The faunal composition is considered as autochthonous and reflects a “palaeo−nursery” in a Hirnantian reef environment. The collected specimens represent twelve genera and four orders. Small oncoceridans and orthoceridans dominate the association. The rate of endemism is very high, since only two genera found in Porkuni, are known from outside Baltoscandia. The new genera Parvihebetoceras, Pomerantsoceras, Porkunioceras, and the new species Parvihebetoceras wahli, Pomerantsoceras tibia, Porkunioceras tuba, and Strandoceras orvikui are erected.

Słowa kluczowe

EN

juvenile cephalopod; Cephalopoda; Nautiloidea; small adult cephalopod; cephalopod; Late Ordovician; Ordovician; life mode; Porkuni village; paleontology; Estonia

• Wydawca: -
• Czasopismo: Acta Palaeontologica Polonica
• Rocznik: 2007
• Tom: 52
• Numer: 3
• Opis fizyczny: p.591-608,fig.,ref.

Twórcy

autor

Kroger B

• Institut fur Palaontologie, Museum fur Naturkunde, D-10115 Berlin, Invalidenstrasse 43, Germany

Bibliografia

• Anstey, R.L., Pachut, J.F., and Tuckey, M.E. 2003. Patterns of bryozoan endemism through the Ordovician–Silurian transition. Paleobiology 29: 305–328.
• Balashov, E.G. [Balašov, E.G.] 1953. Stratigraphic distribution of Nautiloidea in the Ordovician of the Baltic Area [in Russian]. Trudy Vsesoûznogo Neftânogo Naučno−Issledovatel'skogo Geologo−Razvednonogo Instituta 78: 197–216.
• Balashov, E.G. [Balašov, E.G.] 1962. Order Ellesmeroceratida [in Russian]. In: V.E. Ružencev (ed.) Osnovy Paleontologii, 73–77, Isdatel’stvo Akademii Nauk SSSR, Moskva.
• Barrande, J. 1865–74. Système Silurien du centre de la Bohême, I.ère partie, Recherches Paléontologiques, vol. II, Classe de Mollusques, Ordre des Céphalopodes. 804 pp. Charles Bellmann, Prague.
• Barskov, I.S. 1972. Posdneordovikskie i silurijskie golovonogie mollûski Kasachstana i Srednej Asii. 109 pp. Izdatel’stvo Akademii Nauk SSSR, Moskva.
• Brenchley, P. 2004. End Ordovician Glaciation. In: B. D. Webby, F. Paris, M.L. Droser, and I.G. Percival (eds.), The Great Ordovician Biodiversification Event, 81–83. Columbia University Press, New York.
• Bruguière, J.G. 1789. Histoire naturelle des vers. Volume 1, part 1, Encyclopedie methodique 6: 1–757. Paris.
• Chen, J.−Y., Liu G−Wu, and Chen T.−E. 1981. Silurian nautiloid faunas of central and southwestern China [in Chinese with English abstract]. Memoirs of the Nanjing Institute of Geology and Palaeontology 13: 1–104.
• Cocks, L.R.M. and Torsvik, T.H. 2004. Major terranes in the Ordovician. In: B.D. Webby, F. Paris, M.L. Droser, and I.G. Percival (eds.), The Great Ordovician Biodiversification Event, 61–67. Columbia University Press, New York.
• Dzik, J. 1984. Phylogeny of the Nautiloidea. Palaeontologia Polonica 45: 3–203.
• Eichwald, E. de 1860. Lethaea Rossica ou Paléontologie de la Russie. 1654 pp. Schweizerbart’sche Verlagsbuchhandlung, Stuttgart.
• Evans, D.H. 1993. The cephalopod fauna of the Killey Bridge Formation (Ordovician, Ashgill), Pomeroy, County Tyrone. Irish Journal of Earth Sciences 12: 155–189.
• Flower, R.H. 1940. The superfamily Discosoridea (Nautiloidea). Bulletin of the Geological Society of America 51: 1969–1970.
• Flower, R.H. 1941. Development of the Mixochoanites. Journal of Paleontology 15: 523–54.
• Flower, R.H. 1946. Ordovician cephalopods from the Cincinnati region. Part 1. Bulletins of American Paleontology 29: 3–547.
• Flower, R.H. 1962. Notes on the Michelinoceratida.New Mexico Institute of Mining and Technology. State Bureau of Mines and Mineral Resources, Memoir 10: 21–40.
• Flower, R.H. and Kummel, B. 1950. A classification of the Nautiloidea. Journal of Paleontology 24: 604–616.
• Foerste, A. F. 1928. Cephalopoda. In: W.H. Twenhofel (ed.), Geology of Anticosti Island. Geological Survey of Canada, Memoir 154: 257–321.
• Foerste, A.F. 1932. Black River and other cephalopods from Minesota, Wisconsin, Michigan, and Ontario (Part 1). Journal of Scientific Laboratories of Denison University 27: 47–36.
• Frey, R.C. 1995. Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. U.S. Geological Survey Professional Paper 1066−P: 1–126.
• Hints, L., Oraspõld, A., and Kaljo, D. 2000. Stratotype of the Porkuni Stage with comments on the Röa Member (Uppermost Ordovician, Estonia). Proceedings of the Estonian Academy of Science, Geology 49: 177–199.
• Horný, R. 1965.Corbuloceras gen. n., nový onkoceroidní hlavonožec (Cephalopoda, Oncocerida) z českého siluru. Časopis Narodního Muzea, oddíl přírodovědný 134: 132–137.
• Hyatt, A. 1883–84. Genera of fossil cephalopods. Proceedings of the Boston Society of Natural History 22: 253–338.
• Hyatt, A. 1900. Cephalopoda. In: K.A. Zittel and C.R. Eastmann (eds.), Textbook of Palaeontology. Volume 1, 502–592, Macmillan and Co., Limited, London.
• Jaanusson, V. 1976. Faunal dynamics in the Middle Ordovician of BaltoScandia. In: M.G. Bassett (ed.), The Ordovician System. Proceedings of a Palaeontological Association Symposium, Birmingham, September 1974, 301–326. University of Wales Press, Cardiff.
• Kiselev, G.N., Sinicyna, I.N. [Siničyna, I.N.], and Isakar, M.A 1990. Atlas mollûskov verhnego ordovika i silura severo−zapada Vostočno−Evropejskoj platformy. 80 pp. Izdatel’stvo Leningradskogo Universiteta, St. Petersburg.
• Kröger, B. and Isakar, M. 2006. Revision of annulated orthoceridan cephalopods of the Baltoscandic Ordovician. Mitteilungen aus dem Musem für Naturkunde in Berlin, Geowissenschaftliche Reihe 9: 137–163.
• Kröger, B. and Mapes, R.H. 2004. Lower Carboniferous (Chesterian) embryonic orthoceratid nautiloids. Journal of Paleontology 78: 560–573.
• Kuhn, O. 1940. Paläozoologie in Tabellen. 50 pp. Fischer Verlag, Jena.
• Kuhn, O. 1949. Lehrbuch der Paläozoologie. 326 pp. Schweizerbart’sche Verlagsbuchhandlung, Stuttgart.
• Lindström, G. 1890. The Ascoceratidae and the Lituitidae of the Upper Silurian formation of Gotland. Kungliga Svenska Vetenskaps−Akademiens Handlingar 23 (12): 1–54.
• M’Coy, F. 1844. A Synopsis of the Characters of the Carboniferous Limestone Fossils of Ireland. 207 pp. University Press, Dublin.
• Miller, A.K. 1932. The mixochoanitic cephalopods. University of Iowa Studies, Studies in Natural History 14 (4): 1–67.
• Mjagkova, E.I. [Mâgkova, E.I.] 1967. Silurijskie nautliloidei Sibirskoj platformy. 56 pp. Izdatel’stvo Nauka, Moskva.
• Münster, G., Graf zu 1840. Die Versteinerungen des Uebergangskalkes mit Clymenien und Orthoceratiten von Oberfranken. Beiträge zur Petrefacten−Kunde 3: 33–121.
• Murchison, R.I. 1839. The Silurian System Founded on Geological Researches in the Counties of Salop, Hereford, Padnor, with Descriptions of the Coal Fields and Overlying Formations. 768 pp. John Murray, London.
• Nestor, H. and Einasto, R. 1997. Ordovician and Silurian carbonate sedimentation basin. In: A. Raukas, and A. Teedumäe (eds.), Geology and Mineral Resources of Estonia, 192–204. Estonian Academy Publishers, Tallinn.
• Oraspõld, A. 1975. On the lithology of the Porkuni Stage in Estonia [in Russian]. Tartu Riikliku Ülikooli Toimetised Töid geoloogia alalt VII (Acta Commentatis Universitat Tartuensis) 359: 33–75.
• Ristedt, H. 1968. Zur Revision der Orthoceratidae. Akademie der Wissenschaften und Literatur in Mainz, Abhandlungen der mathematisch-naturwissenschaftlichen Klasse 1968: 211–287.
• Salter, J.W. 1866. An Appendix on the Fossils, with Plates. In: A.C. Ramsay (ed.), The Geology of North Wales with Map and Sections. Memoirs of the Geological Survey of Great Britain and the Museum of Practical Geology in London 3: 239–381.
• Schmidt, F. 1858. Untersuchungen über die Silurische Formation von Ehstland, Nord−Livland und Oesel. Archiv für die Naturkunde Liv−, Ehst− und Kurlands, Serie 1 (Mineralogische Wissenschaften, nebst Chemie, Physik und Erdbeschreibung) 2: 1–248.
• Sepkoski, J.J. Jr. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363: 1–560.
• Shimizu, S. and Obata T. 1935. New genera of Gotlandian and Ordovician nautiloids. The Journal of the Shanghai Science Institute, section 2, 2: 1–10.
• Strand, T. 1934. The Upper Ordovician cephalopods of the Oslo Area. Norsk geologiske Tidsskrift 14: 1–117.
• Stridsberg, S. 1988. A Silurian cephalopod with a reinforced frilled shell. Palaeontology 31: 651–66.
• Stumbur, H. 1956. Nautiloidea of the Kokhila Stage (Upper Ordovician of the Baltic Area) [in Russian]. Tartu Riikliku Ülikooli Toimetised 42: 176–185.
• Sweet, W.C. 1958. The Middle Ordovician of the Oslo region of Norway. 10. Nautiloid cephalopods. Norsk geologiske Tidsskrift 31: 1–178.
• Sweet, W.C.1964. Oncocerida. In: C. Teichert (ed.), Treatise on Invertebrate Paleontology, Part K, Mollusca 3, K277–K319, Geological Society of America and the University of Kansas Press, Boulder, Colorado.
• Tanabe, K. and Uchiyama, K. 1997. Development of the embryonic shell structure in Nautilus. Veliger 40: 203–214.
• Teichert, C. 1930. Die Cephalopoden−Fauna der Lyckholm−Stufe des Ostbaltikums. Paläontologische Zeitschrift 12: 264–312.
• Teichert, C. 1964. Ellesmerocerida. In: C. Teichert (ed.), Treatise on Invertebrate Paleontology, Part K, Mollusca 3, K320–K342, Geological Society of America and the University of Kansas Press, Boulder, Colorado.
• Troedsson, G.T. 1931. Studies on Baltic fossil cephalopods. I. On the nautiloid genus Orthoceras. Lunds UniversitetsÅrsskrift, NF 2, 27 (16): 1–36.
• Wahl, A. von 1923. Mitteilungen über die Geologie von Borkholm und seiner Umgebung. Tartu Ülikooli juures oleva Loodusuurijate seltsi aruanded 24 (for 1922): 23–29.
• Webby, B.D., Elias, R.J., Young, G.A., Neumann, B.E.E., and Kaljo D. 2003. Corals. In: B.D. Webby, F. Paris, M.L. Droser, and I.G. Percival (eds.), The Great Ordovician Biodiversification Event, 124–146. Columbia University Press, New York.
• Whiteaves, J.F. 1892. The Orthoceratidae of the Trenton limestone of the Winnipeg Basin. Transactions of the Royal Society of Canada 9: 77–90.
• Yü, C.C. 1930. The Ordovician Cephalopoda of central China. Palaeontologia Sinica, Series B 1: 1–101.
• Zhuravleva, F.A. [Žuravleva, F.A.] 1961. Some Paleozoic nautiloids from Podolia [in Russian]. Paleontologičeskij žurnal 1961 (4): 55–59.