Ringnesiceras ellefense (Kemper & Jeletzky, 1979) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda family Polyptychitidae genus Dichotomites species Dichotomites ellefensis Name Homonyms Ringnesiceras ellefense (Kemper & Jeletzky, 1979)