Hemidiscus Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Coscinodiscales family Hemidiscaceae genus Hemidiscus Name Homonyms Hemidiscus G.C.Wallich, 1860 Hemidiscus Hemidiscus Hemidiscus Schellwien, 1898