NJG20-3/4-02
1940
Dictyonema shales outside the Oslo region
20
3, 4
161-169

The graptolite Dictyonema flabelliforme (Eichw.) has be en recorded from Hardangervidda, Holtålen near Røros and Snertingdal north of Gjøvik. The present description of these finds with the associating faunas shows that the occurring speeies and varieties belong to the Dictyonema Shale (2 e) at the base of the Ordovician.