? columbianus McLearn, 1940 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Mollusca class Cephalopoda order Ceratitida family Tropiceltitidae Name Homonyms ? columbianus Ord, 1815 ? columbianus Salvadori, 1895 ? columbianus McLearn, 1940 ? columbianus McLearn, 1939