? floridanum Clark & Twitchell, 1915 Dataset GBIF Backbone Taxonomy Rank UNRANKED Classification kingdom Animalia phylum Echinodermata class Echinoidea order Echinolampadacea family Laganidae Name Homonyms ? floridanum Ashmead, 1893 ? floridanum Audubon, 1835 ? floridanum Clark & Twitchell, 1915