Two new orthothecids from the Cambrian of the Barrandian area (Hyolitha, Skryje-Týřovice Basin, Czech Republic)

 

Authors: Valent M, Fatka O, Szabad M, Micka V, Marek L

Published in: Bulletin of Geosciences, volume 87, issue 2; pages: 241 - 248; Received 31 August 2011; Accepted in revised form 11 November 2011; Online 14 December 2011

Keywords: hyoliths, orthothecids, Circotheca, Probactrotheca, Cambrian Series 3, Skryje-Týřovice Basin, Teplá-Barrandian region, Czech Republic,

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Abstract

Two orthothecid hyoliths Probactrotheca briketa new genus and new species and Circotheca smetanai new species are described from the Middle Cambrian Buchava Formation of the Skryje-Týřovice Basin in the Czech Republic. The new forms are based on about twenty well-preserved external and internal moulds of opercula and conchs. The stratigraphic range and geographic distributions for both taxa are well known.

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