Ceratium pentagonum f. turgidum (Jorgensen) Bohm, 1931 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Myzozoa class Dinophyceae order Gonyaulacales family Ceratiaceae genus Ceratium species Ceratium pentagonum Name Synonyms Ceratium pentagonum var. turgidum Jorgensen, 1911 Homonyms Ceratium pentagonum f. turgidum (Jorgensen) Bohm, 1931 Ceratium pentagonum var. turgidum Jorgensen, 1911