Knemiceras crassinodosum (Sommermeier, 1910) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda family Knemiceratidae genus Glottoceras species Glottoceras crassinodosum Name Homonyms Knemiceras crassinodosum (Sommermeier, 1910)