Navicula silicula Ehrenberg Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Pinnulariaceae genus Caloneis species Caloneis ventricosa Name Homonyms Navicula silicula Ehrenberg, 1843 Navicula silicula (Rhrenberg) Cleve