Derbyia regularis (Waagen, 1884) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Brachiopoda family Orthotetidae genus Derbyia species Derbyia regularis Name Synonyms Orthotetes fascicostata Liang, 1990 Orthotetes regularis (Waagen, 1884) Homonyms Derbyia regularis McKee, 1938 Derbyia regularis (Waagen, 1884)