Dalmanitina beds (late Ordovician) on Bornholm

A new well drilled through the Silurian in the southern part of Bornholm has revealed the presence of the regressive late Ordovician Dalmanitina beds. The pre-Silurian well section is described, and the Ashgillian fauna is described and discussed. The well cuttings from the Tretaspis Shale have yielded Lonchodomas portlocki, Microparia speciosa, Tretaspis granulata, Uhakiella sp., Paterula cf. portlocki , Sowerbyella? cf. restricta , and echinoderm fragments. The Dalmanitina beds, hitherto believed to be absent in the sequence on Bornholm, contain Dalmanitina mucronata, Jllaenus angustifrons depressus, indeterminate proetids known from equivalent beds in Poland, Primitiella tenera , Holopea? cf. mobergi, Michelinoceras? sp., Conularia sp., Lepidocoleus suecicus, Sowerbyella? cf. restricta, and echinoderm fragments.