Radula tridens Steph. ex Paris, 1910 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Marchantiophyta class Jungermanniopsida order Porellales family Radulaceae genus Radula species Radula fissifolia Name Homonyms Radula tridens Steph. ex Paris, 1910 Radula tridens Steph.