Tetracyclus rupestris (Braun) Grunow Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Tabellariales family Tabellariaceae genus Tetracyclus species Tetracyclus rupestris Name Homonyms Tetracyclus rupestris (Kützing) Grunow, 1881