Antithamnion amphigeneum A.J.K.Millar, 1990 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Ceramiales family Ceramiaceae genus Antithamnion species Antithamnion amphigeneum Name Synonyms Antithamnion algeriense M.Verlaque & Seridi, 1991 Homonyms Antithamnion amphigeneum A.J.K.Millar, 1990