Ceratium fusus var. seta (Ehrenb.) Sournia Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Chromista phylum Myzozoa class Dinophyceae order Gonyaulacales family Ceratiaceae genus Tripos species Tripos fusus Name Homonyms Ceratium fusus var. seta (Ehrenb.) Sournia Ceratium fusus subsp. seta (Ehrenberg) Sournia, 1966