? torulosum Schubler, 1831 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Mollusca class Cephalopoda family Lytoceratidae genus Pleurolytoceras species Pleurolytoceras torulosum Name Homonyms ? torulosum Linnaeus, 1767 ? torulosum Schubler, 1831