? parallelum Hall, 1860 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Mollusca class Cephalopoda order Goniatitida family Muensteroceratidae Name Homonyms ? parallelum Say, 1825 ? parallelum Scudder, 1879 ? parallelum Ruzhentsev, 1959 ? parallelum Hall, 1860 ? parallelum Schmidt