Clepsydrops vinslovii Cope, 1877 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata family Ophiacodontidae genus Clepsydrops species Clepsydrops vinslovii Name Synonyms Captorhinus illinoiensis Williston, 1911 Captorhinus illinoisensis Williston, 1911 Homonyms Clepsydrops vinslovii Cope, 1877