Popanoceras tumarense (Ruzhentsev, 1961) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda order Goniatitida family Mongoloceratidae genus Biarmiceras species Biarmiceras tumarense Name Homonyms Popanoceras tumarense (Ruzhentsev, 1961)