Phragmosphaera expansus (de Sowerby & Murchison, 1839) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Gastropoda family Pterothecidae genus Phragmosphaera species Bellerophon expansus Name Homonyms Phragmosphaera expansus (de Sowerby & Murchison, 1839)