Frustulia interposita f. interposita Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Amphipleuraceae genus Frustulia species Frustulia interposita Name Homonyms Frustulia interposita subsp. interposita Frustulia interposita var. interposita Frustulia interposita f. interposita