Rhaptagnostus acutifrons (Troedsson, 1937) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Trilobita order Agnostida family Agnostidae genus Neoagnostus species Neoagnostus acutifrons Name Homonyms Rhaptagnostus acutifrons (Troedsson, 1937)