Ceratium platycorne f. compressum (Gran) Gran, 1911 Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Myzozoa class Dinophyceae order Gonyaulacales family Ceratiaceae genus Ceratium species Ceratium compressum Name Homonyms Ceratium platycorne f. compressum (Gran) Gran, 1911 Ceratium platycorne var. compressum (Gran) Jörgensen, 1920