Hyopsodus paulus Leidy, 1870 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata class Mammalia family Hyopsodontidae genus Hyopsodus species Hyopsodus paulus Name Synonyms Hyopsodus despiciens Matthew, 1909 Hyopsodus marshi Osborn, 1902 Hyopsodus rarus (Marsh, 1872) Stenacodon rarus (Marsh, 1872) Homonyms Hyopsodus paulus Leidy, 1870