Exogyra contorta Eichwald, 1868 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Ostreida family Gryphaeidae genus Exogyra species Exogyra contorta Name Homonyms Exogyra contorta Eichwald, 1868 Exogyra contorta d'Archiac, 1835