Jarvik E. Middle and Upper Devonian Porolepiformes from East Greenland with Special Reference to Glyptolepis Groenlandica . sp. Meddr Grønland [Internet]. 1972 Dec. 29 [cited 2025 Dec. 28];187(2):379 pp. Available from: https://tidsskrift.dk/meddrgroenland/article/view/151880