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Desmoceras (Pseudouhligella) intrapunctatum n. sp. (Ammonoidea) aus dem Unter-Albium von NW-Madagaskar mit Ritzstreifen

Desmoceras (Pseudouhligella) intrapunctatum n. sp. (Ammonoidea) from the Lower Albian of NW Madagascar with „Ritzstreifen“

Paläontologische Zeitschrift volume 82, pages 437–447 (2008)Cite this article

Kurzfassung

Aus den glaukonitischen Mergeln des Unter-Albiums von Ambatolafia im Mahajanga-Becken NW-Madagaskars wirdDesmoceras (Pseudouhligella) intrapunctatum als neue Ammoniten-Art (DesmoceratoideaZittel, 1895) eingeführt. Bei Steinkern-Erhaltung wird die gut entwickelte RitzstreifungSandberger & Sandberger 1850 sensuTozer 1972 sichtbar, die durch schmale Leistenbildungen der Inneren Prismenschicht gebildet wird. Da die anderen Taxa der Desmoceratoidea, die mit der neuen Art vergesellschaftet sind und deren Schalen auch exzellent in ihrer primären Aragonitstruktur überliefert sind, keine Ritzstreifung aufweisen, geht dieses Merkmal in die Artdiagnose ein.

Abstract

The new ammonoid speciesDesmoceras (Pseudouhligella) intrapunctatum (DesmoceratoideaZittel, 1895) is described and figured from the dark glauconitic marls of the Lower Albian of Ambatolafia (Mahajanga Basin of northwestern Madagascar). On the molds of its body chamber a well developed system of dotted lines is visible originally described from Palaeozoic ammonoids and nautiloids (= „Ritzstreifen“Sandberger & Sandberger 1850 sensuTozer 1972). These internal shell structures have been originated by small ridges of the inner prismatic layer as the result of an incomplete mineralization. “Ritzstreifen” could not have observed in any other ammonoid species accompanied withDesmoceras (Pseudouhligella) intrapunctatum, despite of the same excellent aragonitic shell preservation. Therefore, this unique character is interpreted as taxonomically significant on species level.

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Literatur

  • Bandel, K. 1982. Morphologie und Bildung der frühontogenetischen Gehäuse bei conchiferen Mollusken. — Facies7: 1–198.

    Article  Google Scholar 

  • Bayer, U. 1974. Die Runzelschicht — ein Leichtbauelement der Ammonitenschale. — Paläontologische Zeitschrift48 (1/2): 6–15.

    Google Scholar 

  • Bikelund, T. 1980. Ammonoid shell structure. — In:House, M.R. &Senior, J.R., eds., The Ammonoidea. — Systematics Association Special Volume18: 177–214.

    Google Scholar 

  • Clausen, C.-D. 1968. Oberdevonische Cephalopoden aus dem Rheinischen Schiefergebirge, I. Orthoceratida, Bactritida. — Palaeontographica (A)128: 1–86.

    Google Scholar 

  • Collignon, M. 1949. Recherches sur les faunes albiennes de Madagascar, I. L’Albien d’Ambarimaninga. — Annales Géologique de Madagascar16: 1–128.

    Google Scholar 

  • Collignon, M. 1961. Ammonites Néocrétacées du Menabe (Madacascar), VII.-Les Desmoceratidae. — Annales Géologiques de Madagascar31: 1–115.

    Google Scholar 

  • Collignon, M. 1963. Altas des fossils caracteristiques de Madagascar (Ammonites), Fasc. X (Albien). — 185 S., Tananarive (Service Geologique).

    Google Scholar 

  • Doguzhayeva, L.A. 1981. The wringle-layer of the ammonoid shell. — Palaeontological Journal1981 (1): 26–35.

    Google Scholar 

  • Doguzhaeva, L. &Mutvei, H. 1986. Functional interpretation of inner shell layers in Triassic ceratid ammonites. — Lethaia19: 195–209.

    Article  Google Scholar 

  • Doguzhaeva, L. &Mutvei, H. 1991. Organization of the soft body inAconeceras (Ammonitina), interpreted on the basis of shell morphology and muscle scars. — Palaeontographica (A)218: 17–33.

    Google Scholar 

  • Doguzhaeva, L. &Mutvei, H. 1996. Attachment of the body to the shell in ammonoids. — In:Landman, N.;Tanabe, K. &Davis, R.A., eds., Ammonoid Paleobiology: 43–63; New York (Plenum Press).

    Google Scholar 

  • Erben, H.K. 1960. Primitive Ammonoidea aus dem Unterdevon Frankreichs und Deutschlands. — Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen110: 1–128.

    Google Scholar 

  • Ford, A.H. &Crick, G.C. 1897. Catalogue of the Fossil Cephalopoda in the British Museum (Natural History), part 3: 33 + 303 S.; London.

  • House, M. 1971. The goniatite wringle-layer. — Smithonian Contribution to Paleobiology3: 23–32.

    Google Scholar 

  • Hyatt, A. 1889. Genesis of the Arietidae. — Smithonian Contribution to Knowledge673: XI + 238.

  • Jacob, C. 1907. Études paléontologiques et stratigraphiques sus la partie moyenne des terrains crétacés dans les Alpes françaises et les regions voisines. — Annales de le’Université de Grenoble19 (2): 221–534.

    Google Scholar 

  • Kawabe, F. &Haggart, J.W. 2003. The ammonoidDesmoceras in the Upper Albian (Lower Cretaceous) of Japan. — Journal of Paleontology77 (2): 314–322.

    Article  Google Scholar 

  • Kayserling, A. &Krusenstern, P. 1846. Wissenschaftliche Beobachtungen auf einer Reise in das Petschora-Land im Jahre 1843. — 465 S., St. Petersburg.

  • Keupp, H. 2000. Ammoniten, paläobiologische Erfolgsspiralen. — 164 S., Stuttgart (Thorbecke).

    Google Scholar 

  • Kiel, S. 2006. New and little-known gastropods from the Albian oft he Mahajanga Basin, Northwestern Madagascar. — Journal of Paleontology80 (3): 455–476.

    Article  Google Scholar 

  • Klug, C.;Korn, D.;Richter, U. &Urlichs, M. 2004. The black layer in Cephalopods from the German Muschelkalk (Triassic). — Palaeontology47 (6): 1407–1425.

    Article  Google Scholar 

  • Klug, C. &Lehmkuhl, A. 2004. Soft-tissue attachment structures and taphonomy of the Middle Triassic nautiloidGermanonautilus. — Acta Geologica Polonica49 (2): 243–258.

    Google Scholar 

  • Korn, D. 1985. Runzelschicht und Ritzstreifung bei Clymenien (Ammonoidea, Cephalopoda). — Neues Jahrbuch für Geologie und Paläontologie Monatshefte1985 (9): 533–541.

    Google Scholar 

  • Kulicki, C. 1979. The ammonite shell: its structure, development and biological significance. — Palaeontologica Polonica39: 97–142.

    Google Scholar 

  • Kulicki, C. 1996. Ammonoid shell microstructure. — In:Landman, N.H.;Tanabe, K. &Davis, R.A., eds., Ammonoid Paleobiology: 65–101, New York/London (Plenum Press).

    Google Scholar 

  • Landman, N. &Bandel, K. 1985. Internal structures in the early whorls of Mesozoic ammonites. — American Museum Novitates2823: 1–21.

    Google Scholar 

  • Lehmann, U. 1990. Ammoniten, Leben zwischen Skylla und Charybdis. — Haeckel-Bücherei2. — 257 S., Stuttgart (Enke).

    Google Scholar 

  • Matsumoto, T. 1938. Preliminary notes on some of the more important fossils among the Gosyoneura fauna. — Journal of the Geological Society of Japan45: 13–24.

    Google Scholar 

  • Matsumoto, T. &Nishida, T. 2004. A revised taxonomy of the ammonoid genusDesmoceras from Japan and southern Sakhalin. — Proceedings of the Japan Academy (B)80: 225–229.

    Article  Google Scholar 

  • McLearn, F.H. 1972. Ammonoids of the Lower Cretaceous Sandstone Member of the Haida Formation, Skidegat Inlet, Queen Charlotte Islans, Estern British Columbia. — Geological Survey of Canada Bulletin188: 1–78.

    Google Scholar 

  • Michelin, H. 1838. Note sur une argile dependant du Gault, observée au Gaty, commune de Gérodôt. départment de l’Aube. — Mémoires de la Societé Géologique de France (l)3: 97–103.

    Google Scholar 

  • Murphy, M.A. &Rodda, P.U. 1960. Mollusca of the Cretaceous Bald Hills Formation of California: Part 1. — Journal of Paleontology34 (5): 835–858.

    Google Scholar 

  • Murphy, M.A. &Rodda, P.U. 1996. The Albian-Cenomanian boundary in northern California. — Bulletin of the Geological Society of America108 (2): 235–250.

    Article  Google Scholar 

  • Quenstedt, F.A. 1881–1884. Petrefaktenkunde Deutschlands, Leipzig (Fues).

  • Richter, U. 2002. Gewebeansatz-Strukturen auf pyritisierten Steinkernen von Ammonoideen. — Geologische Beiträge Hannover4: 1–113.

    Google Scholar 

  • Richter, A.E. 2002. Madagaskars schönste Ammoniten. — Fossilien2002 (2): 110–116.

    Google Scholar 

  • Ristedt, H. 1971. Zum Bau der orthoceriden Cephalopoden. — Palaeontographica (A)137: 155–195.

    Google Scholar 

  • Sandberger, G. &Sandberger, F. 1850–1856. Systematische Beschreibung und Abbildung der Versteinerungen des Rheinischen Systems in Nassau. — 136 S., Wiesbaden.

  • Senior, J.R. 1971. Wrinkle-layer structures in Jurassic ammonites. — Palaeontology14 (1): 107–113.

    Google Scholar 

  • Tozer, E.T. 1972. Observations on the shell structure of Triassic ammonoids. — Palaeontology15 (4): 637–654.

    Google Scholar 

  • Turek, V. 1975. GenusKosovoceras gen. n. in the Silurian of Central Bohemia (Nautiloidea). — Sbornik Geologichych Vedeckych, Paleontologie17: 7–44.

    Google Scholar 

  • Walliser, O.H. 1970. Über die Runzelschicht bei Ammonoidea. — Göttinger Arbeiten zur Geologie und Paläontologie5 (H. Martin-Festschrift): 115–126.

    Google Scholar 

  • Ward, P. 1981. Shell sculpture as a defensive adaptation in ammonoids. — Paleobiology7: 96–100.

    Google Scholar 

  • Weitschat, W. 1986. Phosphatisierte Ammonoideen aus der mittleren Trias von Central-Spitzbergen. — Mitteilungen des Geologisch-Paläontologischen Instituts der Universität Hamburg61: 249–279.

    Google Scholar 

  • Wright, C.W. &Matsumoto, T. 1954. Some doubtful Cretaceous ammonite genera from Japan and Saghalien. — Memoirs of the Faculty of Science, Kyushu University (D)4: 107–134.

    Google Scholar 

  • Wright, C.W.;Callomon, J.H. &Howarth, M.K. 1996. Treatise on Invertebrate Paleontology, Part L, Mollusca 4 (revised). — 362 S., Lawrence, KS (The Geological Society of America & The University of Kansas).

    Google Scholar 

  • Yabe, H. 1904. Cretaceous Cephalopoda from the Hokkaido, part 2. — Journal of the College of Science, Imperial University of Tokyo20: 1–45.

    Google Scholar 

  • Zittel, K.A. 1884. Handbuch der Paläontologie, Band 1: 329–522 (Cephalopoda); München/Leipzig (Oldenbourg).

    Google Scholar 

  • Zittel, K.A. 1895. Grundzüge der Paläontologie. — VIII + 971 S.; München/ Leipzig (Oldenbourg).

    Google Scholar 

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  1. Institut für Geologische Wissenschaften, Freie Universität Berlin, Malteserstr. 74-100, Haus D, D-12249, Berlin

    Helmut Keupp

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Keupp, H. Desmoceras (Pseudouhligella) intrapunctatum n. sp. (Ammonoidea) aus dem Unter-Albium von NW-Madagaskar mit Ritzstreifen. Paläontol Z 82, 437–447 (2008). https://doi.org/10.1007/BF03184432

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Schlüsselwörter

  • Ammonitina
  • Desmoceratoidea
  • Ritzstreifen
  • Madagaskar
  • Unter-Kreide

Keywords

  • Ammonitina
  • Desmoceratoidea
  • Ritzstreifen
  • Madagascar
  • Lower Cretaceous