Gyrosigma kuetzingii (Grunow) Cleve Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Pleurosigmataceae genus Gyrosigma species Gyrosigma acuminatum Name Homonyms Gyrosigma kuetzingii (Grunow) Cleve, 1894