Palaeoconcha subsymmetrica (Kobayashi, 1934) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Bivalvia order Nuculida family Praenuculidae genus Palaeoconcha species Ctenodonta subsymmetrica Name Homonyms Palaeoconcha subsymmetrica (Kobayashi, 1934)