? arcticum Kjellman Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Plantae phylum Rhodophyta class Florideophyceae order Corallinales family Mesophyllumaceae genus Clathromorphum species Neopolyporolithon arcticum Name Homonyms ? arcticum Bogoslovskaya, 1982 ? arcticum Stolley, 1911 ? arcticum Gordon, 1957 ? arcticum Kjellman ? arcticum Ssaweljev, 1912 ? arcticum Ehrenb. ? arcticum Roy, 1941 ? arcticum Grosser