Calymene tristani (Brongniart & Desmarest, 1817) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Trilobita order Phacopida family Calymenidae genus Neseuretus species Neseuretus tristani Name Homonyms Calymene tristani (Brongniart & Desmarest, 1817)