Planocassidulina norcrossi (Cushman, 1933) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Foraminifera class Globothalamea order Rotaliida family Cassidulinidae genus Islandiella species Islandiella norcrossi Name Homonyms Planocassidulina norcrossi (Cushman, 1933)