Orbaspina chlupaci sp. nov., a new siphonotretid brachiopod from the Silurian of the Barrandian area, Bohemia

 

Authors: Mergl M

Published in: Bulletin of Geosciences, volume 78, issue 4; pages: 419 - 421; Received 27 August 2003; Accepted in revised form 3 October 2003;

Keywords: Brachiopoda, Siphonotretida, Dysoristidae, Silurian, Barrandian, Czech Republic,

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Abstract

New siphonotretid brachiopod Orbaspina chlupaci is described from the Kopanina Formation (Ludlow, Silurian) of the Barrandian. Its external ornament combines pits, separated by low ridges and nodes, with a typical siphonotretid ornament of long hollow spines. Spines are restricted to edges of concentric lamellae and posterior shell margin, and indicate a schizambonine affinity. Occurrence of Silurian and Devonian siphonotretids in the Barrandian area is re-evaluated.