original description(ofNavicula supergradata Brun, 1891)Brun, J. (1891). Diatomées espèces nouvelles marines, fossiles ou pélagiques. Mémoires de la Société de Physique et d'Histoire Naturelle de Genève, 31(part 2, no.1): 1-47, pl. 11-22, available online athttps://doi.org/10.5962/bhl.title.64362 page(s): p. 40; pl. 15, fig. 6 [details]
new combination referenceHendey, N.I. (1964). An introductory acount of the smaller algae of British coastal waters. Part V: Bacillariophyceae (Diatoms). Ministry of Agriculture, Fisheries and Food, Fishery Investigations, Series 4. Her Majesty's Stationery Office, London, 317 pp., 45 pls page(s): p. 228 [details]