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

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• Volume 55 No.2 / April 2004

Published: Apr 2004

Pages: 129 - 146

Authors: OLEG MANDIC

Abstract: The present study investigates the pectinid bivalve record characterizing the Middle Miocene Grund Formation from the Lower Austrian part of the Alpine-Carpathian Foredeep. The results provide the first comprehensive compilation of that pectinid assemblage, based on the recent excavation material and historic collections. Updating and revision of genus and species level taxa excluded polyphyletic taxa and allowed a more accurate correlation with occurrences from adjacent regions distributed across the NE Atlantic, Mediterranean, Paratethys and Indian Ocean. Hence 10 species level taxa — ”Chlamys” trilirata, Hinnites crispus, Crassadoma multistriata, Aequipecten malvinae, Ae. macrotis, Costellamussiopecten cristatus badense, Oopecten solarium, Macrochlamis nodosiformis, M. tournali and Pecten subarcuatus styriacus — were identified. Thereby the subgenus Costellamussiopecten was separated from Amussiopecten, elevated to the genus level and applied to the lineage including the European ”Amusium” — C. cristatus. Macrochlamis has been regarded as a valid name, and a senior synonym of Gigantopecten. ”Chlamys” represents a still unavailable genus-name closely related to the Chlamys group. The species level revisions include discovery of H. crispus based on previously erroneously identified specimens. Moreover the new material brought the first evidence of the presence of Ae. malvinae and ”Ch.” trilirata in the Grund Formation. The latter three taxa greatly enhanced the stratigraphic signature of this pectinid assemblage allowing an accurate inference of the Early to Middle Badenian (regional Central Paratethys geochronological unit isochronous with the Langhian, that is early Middle Miocene) age and a regional correlation with the Lower Lagenidae Zone for the NE Austrian Neogene basins.

Keywords: Middle Miocene, Lower Badenian, Central Paratethys, Alpine-Carpathian Foredeep, biostratigraphy, taxonomic revision, pectinid bivalves

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)