Actinocyclus crassus (W.Smith) Ralfs Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Triceratiales family Triceratiaceae genus Eupodiscus species Eupodiscus crassus Name Homonyms Actinocyclus crassus (W.Smith) Ralfs ex Pritchard, 1861 Actinocyclus crassus (W.Smith) Ralfs