Clepsydrops collettii Cope, 1875 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata family Ophiacodontidae genus Clepsydrops species Clepsydrops collettii Name Synonyms Archaeobelus vellicatus Cope, 1877 Clepsydrops pedunculatus Cope, 1877 Homonyms Clepsydrops collettii Cope, 1875