Oestrupia powellii (Lewis) Heiden Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Naviculales family Pinnulariaceae genus Oestrupia species Oestrupia powellii Name Homonyms Oestrupia powellii (Lewis) Heiden ex Hustedt, 1935 Oestrupia powellii (Lewis) Heiden