In the past, this gastropod was known as Bellerophon (Pharkidonotus). The name in parenthesis is due to subgenera naming. In modern gastropod taxonomy, several sub and super-names are used, including unranked groups that don’t fall into a classic hierarchy.
McCoy named the family Bellerophontidae in 1852 in the publication “Description of the British Paleozoic fossils in the Geological museum of the University of Cambridge.” The order Bellerophontida was named later by Ulrich & Scofield, 1897
- Sedgwick, A., McCoy, F, 1850-1855, A synopsis of the classification of the British Palæozoic rocks; With a systematic description of the British Palæozoic fossils in the Geological museum of the University of Cambridge.