Cocconema helveticum (Kütz.) West & G.S.West, 1905 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Cymbellales family Cymbellaceae genus Cymbella species Cymbella helvetica Name Homonyms Cocconema helveticum (Kützing) Cleve & Grunow, 1880 Cocconema helveticum (Kütz.) West & G.S.West, 1905