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OSTRACODA FROM THE LOWER BADENIAN (MIDDLE MIOCENE) GRUND FORMATION (MOLASSE BASIN, LOWER AUSTRIA)

• Geologica Carpathica
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• Volume 55 No.2 / April 2004

Published: Apr 2004

Pages: 179 - 189

Authors: IRENE ZORN

Abstract: In the present study the ostracods from the Lower Badenian (Middle Miocene) Grund Formation of the Molasse Basin in Lower Austria are investigated. Most of the material comes from the type area of Grund. A total of 61 species could be differentiated within the Grund Formation. The following taxa dominate the faunal spectrum: Hemicytheridae (Aurila, Graptocythere, Grinioneis, Nonurocythereis, Pokornyella, Senesia, Tenedocythere, Urocythereis), Cyamocytheridea derii (Zalanyi, 1913), Cytheridea acuminata Bosquet, 1852 and Cytheridea paracuminata Kollmann, 1960. The ostracod assemblage reflects a shallow warm water environment with a water depth probably not exceeding 100 m. A part of the material is assumed to be re-deposited. Deep water elements are only represented by single specimens of Krithe, Henryhowella and Pseudocytherura. The stratigraphic classification of an Early Badenian age for the Grund Formation by means of Foraminifera can be supported mainly by the occurrence of Acanthocythereis hystrix (Reuss, 1850). Many species are also known either from Karpatian or from younger Badenian sequences in Austria. Furthermore a comparison between the ostracod contents of the formations of the former so-called Grund Beds is given (Karpatian: Laa and Korneuburg Formations; Lower Badenian: Grund and Gaindorf Formations). The occurrence of Loxoconcha vaisonna Carbonnel, 1969, Aurila larieyensis Moyes, 1965, Callistocythere karpatiensis Zorn, 1998 and Neocyprideis aff. corbleuensis Ducasse, 1995 in the Karpatian formations is most useful to separate them from the Badenian formations with the occurrence of Acanthocythereis hystrix (Reuss, 1850) and several species of Hemicytheridae.

Keywords: Miocene, Badenian, Lower Austria, Molasse Basin, Grund Formation, biostratigraphy, paleoecology, Ostracoda

Volume 55 no. 2 / April 2004

• REINHARD ROETZEL, PETER PERVESLER

  STORM-INDUCED EVENT DEPOSITS IN THE TYPE AREA OF THE GRUND FORMATION (MIDDLE MIOCENE, LOWER BADENIAN) IN THE MOLASSE ZONE OF LOWER AUSTRIA

• PETER PERVESLER, ALFRED UCHMAN

  ICHNOFOSSILS FROM THE TYPE AREA OF THE GRUND FORMATION (MIOCENE, LOWER BADENIAN) IN NORTHERN LOWER AUSTRIA (MOLASSE BASIN)

• PETER PERVESLER, MARTIN ZUSCHIN

  A LUCINOID BIVALVE TRACE FOSSIL SARONICHNUS ABELI IGEN. ET ISP. NOV. FROM THE MIOCENE MOLASSE DEPOSITS OF LOWER AUSTRIA, AND ITS ENVIRONMENTAL SIGNIFICANCE

• MARTIN ZUSCHIN, MATHIAS HARZHAUSER, OLEG MANDIC

  TAPHONOMY AND PALEOECOLOGY OF THE LOWER BADENIAN (MIDDLE MIOCENE) MOLLUSCAN ASSEMBLAGES AT GRUND (LOWER AUSTRIA)

• OLEG MANDIC

  PECTINID BIVALVES FROM THE GRUND FORMATION (LOWER BADENIAN, MIDDLE MIOCENE, ALPINE-CARPATHIAN FOREDEEP) — TAXONOMIC REVISION AND STRATIGRAPHIC SIGNIFICANCE

• STJEPAN CORIC, LILIAN SVABENICKA

  CALCAREOUS NANNOFOSSIL BIOSTRATIGRAPHY OF THE GRUND FORMATION (MOLASSE ZONE, LOWER AUSTRIA)

• SILVIA SPEZZAFERRI

  FORAMINIFERAL PALEOECOLOGY AND BIOSTRATIGRAPHY OF THE GRUND FORMATION (MOLASSE BASIN, LOWER AUSTRIA)

• STJEPAN CORIC, FRED ROGL

  ROGGENDORF-1 BOREHOLE, A KEY-SECTION FOR LOWER BADENIAN TRANSGRESSIONS AND THE STRATIGRAPHIC POSITION OF THE GRUND FORMATION (MOLASSE BASIN, LOWER AUSTRIA)

• IRENE ZORN

  OSTRACODA FROM THE LOWER BADENIAN (MIDDLE MIOCENE) GRUND FORMATION (MOLASSE BASIN, LOWER AUSTRIA)

• GUDRUN DAXNER-HOCK, PETRA M. MIKLAS-TEMPFER, URSULA B. GOHLICH, KATI HUTTUNEN, EMESE KAZAR, DORIS NAGEL, GERTRUD E. ROESSNER, ORTWIN SCHULTZ, REINHARD ZIEGLER

  MARINE AND TERRESTRIAL VERTEBRATES FROM THE MIDDLE MIOCENE OF GRUND (LOWER AUSTRIA)

• ROBERT SCHOLGER, KARL STINGL

  NEW PALEOMAGNETIC RESULTS FROM THE MIDDLE MIOCENE (KARPATIAN AND BADENIAN) IN NORTHERN AUSTRIA

• STJEPAN CORIC, MATHIAS HARZHAUSER, JOHANN HOHENEGGER, OLEG MANDIC, PETER PERVESLER, REINHARD ROETZEL, FRED ROGL, ROBERT SCHOLGER, SILVIA SPEZZAFERRI, KARL STINGL, LILIAN SVABENICKA, IRENE ZORN, MARTIN ZUSCHIN

  STRATIGRAPHY AND CORRELATION OF THE GRUND FORMATION IN THE MOLASSE BASIN, NORTHEASTERN AUSTRIA (MIDDLE MIOCENE, LOWER BADENIAN)