Griesbachites medleyanus (Stoliczka, 1865) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda order Ceratitida family Juvavitidae genus Griesbachites species Ammonites medleyanus Name Homonyms Griesbachites medleyanus (Stoliczka, 1865)