Koppelhus, E. B. . and Hansen, C. F. . (2003) “Palynostratigraphy and palaeoenvironment of the Middle Jurassic Sortehat Formation (Neill Klinter Group), Jameson Land, East Greenland”, GEUS Bulletin. Copenhagen, Denmark, 1, pp. 777–811. doi: 10.34194/geusb.v1.4689.