Thalassionema Grunow ex Hustedt Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Plantae phylum Bacillariophyta class Bacillariophyceae order Thalassionematales family Thalassionemataceae genus Thalassionema Name Homonyms Thalassionema Grunow ex Hust, 1932 Thalassionema M.Peragallo Thalassionema A.Grunow ex C.Mereschkowsky, 1902