From Catalogue of DIatom Names: "Automatically typified with type of the subgenus. Valid. Basionym of generic name: Cymbella subgen. Cymbopleura Krammer 1982 in Micromorphology of Diatom Valves (ed. J.-G. Helmcke & K. Krammer), vol. XI, p. 20, ref. 006874). Subgeneric name valid. Cymbopleura as a generic name was proposed by Krammer 1997 (Bibli. Diat. 36, p. 11, 1997, ref. 007080) but was invalidly published then for missing a full and direct reference to a Latin description. Type cited by Krammer 1999 as Cymbella (Cymbopleura) subaequalis Grunow in Van Heurck. Combination Cymbopleura subaequalis not validly published."