A microboring Planobola macrogota Schmidt, 1992 in bioclasts of Miocene sediments - a possible evidence of shallow marine conditions on the Česká Třebová region (Eastern Bohemia, Czech Republic)

 

David Axmann, Radek Mikuláš, Max Wisshak

Geoscience Research Reports 44, 2011 (GRR for 2010), pages 93–97

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Abstract

Miocene (lower Badenian) clays in the eastern Bohemian locality Česká Třebová provided finds of a microboring Planobola macrogota Schmidt which is significant for shallow marine settings (few dozens of metres of depth as the maximum). In comparison,) South Moravian localities of the same age and rock composition provided different assemblages of microborings that are significant for depths of hundreds of metres.