Parastacheoceras tietzei (Gemmellaro, 1887) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda order Goniatitida family Vidrioceratidae genus Stacheoceras species Stacheoceras tietzei Name Homonyms Parastacheoceras tietzei (Gemmellaro, 1887)