JARVIK, Erik. Middle and Upper Devonian Porolepiformes from East Greenland with Special Reference to Glyptolepis Groenlandica . sp. Meddelelser om Grønland, [S. l.], v. 187, n. 2, p. 379 pp., 1972. Disponível em: https://tidsskrift.dk/meddrgroenland/article/view/151880. Acesso em: 28 dec. 2025.