? verna Perner, 1907 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Mollusca class Gastropoda order Pleurotomariida family Pleurotomariidae Name Homonyms ? verna Barrande, 1865 ? verna Perner, 1907 ? verna Perner, 1903 ? verna Bull. ex Fr.