Gomphonema parvulum (Kützing) Grunow Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Cymbellales family Gomphonemataceae genus Gomphonema species Gomphonema parvulum Name Homonyms Gomphonema parvulum (Kützing) Kützing, 1849 Gomphonema parvulum (Kützing) Grunow