? bisulcus Marsh, 1869 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Chordata class Elasmobranchii order Myliobatiformes family Myliobatidae Name Homonyms ? bisulcus Molina, 1782 ? bisulcus Marsh, 1880 ? bisulcus Marsh, 1869