Colletonema eximium Thwaites Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae genus Colletonema species Colletonema eximium Name Homonyms Colletonema eximium (Thwaites) Kützing, 1849 Colletonema eximium Thwaites ex W.Smith, 1856 Colletonema eximium Thwaites