Yaojiayuella Zhang et al., 1980 Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Animalia phylum Arthropoda class Trilobita order Ptychopariida family Ptychopariidae genus Yaojiayuella Name Homonyms Yaojiayuella Lin & Wu, 1980 Yaojiayuella Zhang et al., 1980