Themisto Oken, 1815 Dataset GBIF Backbone Taxonomy Rank GENUS Published in Lehrb. Nat., 3 (1), 278. Classification kingdom Animalia phylum Mollusca class Bivalvia order Lucinoida family Thyasiridae genus Themisto Name Homonyms Themisto Guérin, 1825 Themisto Oken, 1807 Themisto Goodsir, 1842