? yokoyamai Makiyama, 1931 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Mollusca class Scaphopoda order Dentaliida family Dentaliidae genus Fissidentalium species Fissidentalium yokoyamai Name Homonyms ? yokoyamai Kobayashi, 1927 ? yokoyamai Ozawa, 1925 ? yokoyamai Jimbo, 1894 ? yokoyamai Nomura & Hatai, 1933 ? yokoyamai Takahashi, 1923