Ceratium buceros f. tenue (Ostenf. & Schmidt) Bohn, 1937 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Myzozoa class Dinophyceae order Gonyaulacales family Ceratiaceae genus Ceratium species Ceratium tenue Name Homonyms Ceratium buceros f. tenue (Ostenf. & Schmidt) Bohn, 1937 Ceratium buceros var. tenue