New Middle Cambrian palaeoscolecid sclerites of Hadimopanella oezgueli from the Cantabrian Mountains, northern Spain

Abstract

A new assemblage of palaeoscolecid sclerites preserving all the details of the (para)species Hadimopanella oezgueli Gedik, 1977, including characteristic ornamentation, has been found in the Middle Cambrian Genestosa Member (Oville Formation) of the Cantabrian Mountains, northern Spain. The assemblage of sclerites shows a great morphological variability enabling emendation of its diagnosis. Some of them exhibit erosive facets as a result of reworking preceding definitive burial. One key specimen has lateral slits along the marginal brim, which represent a crown of eroded tubercles, and may be classified out the (para) genus Hadimopanella.

Keywords::

• Genestosa Member
• Gondwana
• parataxonomy
• taphonomy

Acknowledgements

The authors thank the revision made by John Peel and an anonymous referee. This article is a contribution to the projects CGL2010-19491 and CGL2011-24516 from Spanish MICINN and FEDER. J.E. is supported by Chinese Academy of Sciences Fellowship for Young International Scientists Grant (Grant No 2012Y1ZB0010).