Ctenoceras sweeti Kröger & Isakar, 2006 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda order Orthocerida family Orthoceratidae genus Ctenoceras species Ctenoceras sweeti Name Homonyms Ctenoceras sweeti Kröger & Isakar, 2006