Hyalodiscus radiatus f. radiatus Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Rhopalodiales family Rhopalodiaceae genus Rhopalodia species Pyxidicula radiata Name Homonyms Hyalodiscus radiatus var. radiatus Hyalodiscus radiatus f. radiatus