Macrodomoceras howitti Teichert & Glenister, 1952 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda family Polyelasmoceratidae genus Macrodomoceras species Macrodomoceras howitti Name Homonyms Macrodomoceras howitti Teichert & Glenister, 1952