Ceratium declinatum f. majus Jorgensen, 1920 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Myzozoa class Dinophyceae order Gonyaulacales family Ceratiaceae genus Tripos species Tripos declinatus Name Homonyms Ceratium declinatum var. majus Jørg. Ceratium declinatum var. majus (Jorgensen) Forti, 1922 Ceratium declinatum f. majus Jorgensen, 1920