Article: Tremadoc trilobites from the Skiddaw Group in the English Lake District
A. W. A. Rushton
The Tremadoc trilobite fauna from the Skiddaw Group exposed in the river Calder, western Lake District, consists of ten species and is referred to the upper Tremadoc Angelina sedgwickii Biozone. Some of the constituent genera are of wide geographical range in outer shelf environments. Two species, Pareuloma expansum and Prospectatrix brevior, are new.