International Geological Journal - Official Journal of the Carpathian-Balkan Geological Association

The northernmost occurrence of the Lower Berriasian ammonite Pseudosubplanites grandis (Štramberk Limestone, Outer Western Carpathians, Czech Republic)

Pages: 461 - 466

Authors: ZDENĚK VAŠÍČEK, PETR SKUPIEN, JAKUB JIRÁSEK

Abstract: The first finding of the index ammonite Pseudosubplanites grandis (Mazenot, 1939) in the Lower Berriasian Štramberk Limestone (Outer Western Carpathians, northeastern Czech Republic) is important from the point of view of both the paleogeographical distribution of this species and of more precisely defining the upper boundary of the Štramberk Limestone (Early Berriasian Berriasella jacobi Zone) formerly regarded as Late Tithonian in age. From the taxonomi- cal point of view, new data on a non-deformed cross-section of the adult whorl and above all on the shape of the adult suture line of this species have been obtained.

Keywords: Outer Western Carpathians, Silesian Unit, Štramberk Limestone, Berriasian, ammonite, Pseudosubplanites

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Volume 64 no. 6 / December 2013

Volume 64 no. 6