Collignoniceras Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Chaetocerotales family Acanthocerataceae genus Collignoniceras Name Homonyms Collignoniceras Breistroffer, 1947 Collignoniceras Collignoniceras van Hoepen, 1955