Petraliella robusta Canu & Bassler, 1929 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Bryozoa class Gymnolaemata order Cheilostomatida family Petraliidae genus Mucropetraliella species Mucropetraliella robusta Name Homonyms Petraliella robusta Canu & Bassler, 1929