JARVIK, Erik. Note on Middle Devonian Crossopterygians from the eastern part of Gauss Halvö, East Greenland. Appendix: An attempt at a correlation of the upper Old Red Sandstone of East Greenland with the marine sequence. Meddelelser om Grønland, [S. l.], v. 149, n. 6, p. 1950–02, 1950. Disponível em: https://tidsskrift.dk/meddrgroenland/article/view/164978. Acesso em: 7 feb. 2026.