Type species: Ptilotrypa obliquata Ulrich , 1890
This genus includes the species:
Swami, Ernst, Tipathia, Barman, Bharti & Rana, 2019 | Late Ordovician Katian | India | WoRMS 1407326 | |
Ulrich , 1890 | Late Ordovician Ashgill | USA Illinois, Tennessee | WoRMS 1407327 | |
Lavrentjeva, 1993 | Ordovician | Estonia | WoRMS 1407328 | |
Lavrentjeva, 1993 | Ordovician | Estonia | WoRMS 1407329 |