1. Whiterockian (Ordovician) conodonts from the Holonda Limestone of the Trondheim Region, Norwegian Caledonides;Bergström;Norsk Geologisk Tidsskrift,1979
2. Conodonts of Laurentian faunal affinities from the Middle Ordovician Svartseetra limestone in the Trondheim Region, Central Norwegian Caledonides;Bergström;Norges Geologiske Undersøkelse Bulletin,1997
3. Age of the Bogo Shale and western Ireland graptolite faunas and their bearing on dating early Ordovician deformation and metamorphism in Norway and Britain;Berry;Norsk Geologisk Tidsskrift,1968
4. A new Lower Ordovician graptolite fauna from the Trondheim Region;Blake;Norsk Geologisk Tidsskrift,1962
5. Ordovician echinoderms from the Trondheim Region, Norway;Bockelie;Norsk Geologisk Tidsskrift,1974