Chaetoceros gracile Schütt Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Chaetocerotales family Chaetocerotaceae genus Chaetoceros species Chaetoceros neogracile Name Homonyms Chaetoceros gracile Schütt Chaetoceros gracile Apstein, 1909