Leptotragulus proavus Scott & Osborn, 1887 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia order Artiodactyla family Protoceratidae genus Leptotragulus species Leptotragulus proavus Name Synonyms Parameryx laevis Marsh, 1894 Parameryx sulcatus Marsh, 1894 Homonyms Leptotragulus proavus Scott & Osborn, 1887