Pleurosigma transversale W.Smith Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Pleurosigmataceae genus Pleurosigma species Pleurosigma naviculaceum Name Homonyms Pleurosigma transversale W.Smith Pleurosigma transversale