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A new assemblage of palaeoscolecid sclerites preserving all the details of the (para)speciesHadimopanella oezgueliGedik, 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) genusHadimopanella. [ABSTRACT FROM AUTHOR]