Gyrosigma nodiferum West Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Pleurosigmataceae genus Gyrosigma species Gyrosigma nodiferum Name Synonyms Gyrosigma spencerii subsp. nodifera Grunow Homonyms Gyrosigma nodiferum (Grunow) Reimer, 1966 Gyrosigma nodiferum West