Ceramium tenuissimum (Roth) J.Agardh Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Ceramiales family Ceramiaceae genus Ceramium species Ceramium diaphanum Name Homonyms Ceramium tenuissimum Bonnemaison Ceramium tenuissimum (Roth) Areschoug Ceramium tenuissimum (Roth) J.Agardh