Megalonyx Harlan, 1825 Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Animalia phylum Chordata class Mammalia order Pilosa family Megalonychidae genus Megalonyx Name Synonyms Megalonyx gracilis Lund, 1893 Homonyms Megalonyx Jefferson, 1799 Megalonyx Lesson, 1832 Megalonyx Harlan, 1825