Navicula seminulum Grunow Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Sellaphoraceae genus Sellaphora species Sellaphora saugerresii Name Homonyms Navicula seminulum Grunow, 1860 Navicula seminulum Ehrenberg, 1842