? pennsylvanicus Brandt, 1840 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Arthropoda class Diplopoda order Julida family Parajulidae genus Ptyoiulus species Ptyoiulus impressus Name Homonyms ? pennsylvanicus Ord, 1815 ? pennsylvanicus Leidy, 1889 ? pennsylvanicus Hall, 1877