Diplograptus quadrimucronatus (Hall, 1865) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Hemichordata class Pterobranchia family Diplograptidae genus Orthograptus species Orthograptus quadrimucronatus Name Homonyms Diplograptus quadrimucronatus Diplograptus quadrimucronatus (Hall, 1865)