The stratigraphical significance of Coryphidium morphotypes in Lower Ordovician Skiddane Group of the English Lake District. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors)
Reference:
Molyneux,S.G. (1996)
The stratigraphical significance of Coryphidium morphotypes in Lower Ordovician Skiddane Group of the English Lake District. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) Acta Universitatis Carolinae-Geologica
Vol. 40 # 3 P. 545- 548