Gyrosigma exilis (Grunow) C.W.Reimer Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Pleurosigmataceae genus Gyrosigma species Gyrosigma exilis Name Homonyms Gyrosigma exilis (Grunow) C.W.Reimer, 1966