Billingsia Ford, 1886 Dataset GBIF Backbone Taxonomy Rank GENUS Published in Amer. J. Sci., (3) 31 Classification kingdom Animalia phylum Brachiopoda class Lingulata order Lingulida family Elkaniidae genus Elkania Name Homonyms Billingsia K.Miller, 1889 Billingsia Koninck, 1877 Billingsia Ford, 1886 Billingsia Walcott, 1886