Protornoceras sinuvaricatum (Sobolew, 1914) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda order Goniatitida family Kirsoceratidae genus Protornoceras species Tornoceras sinuvaricatum Name Homonyms Protornoceras sinuvaricatum (Sobolew, 1914)