Groenlandaspidid Placoderm Fishes from the Late Devonian of North America Author Daeschler, Edward B. Author Frumes, Anna C. Author Mullison, C. Frederick text Records of the Australian Museum 2003 2003-04-16 55 1 45 60 https://journals.australian.museum/daeschler-et-al-2003-rec-aust-mus-551-4560/ journal article 10.3853/j.0067-1975.55.2003.1374 2201-4349 4685467 Genus Groenlandaspis Heintz, 1932 Type species . Groenlandaspis mirabilis Heintz 1932 ; Late Devonian , East Greenland .