Hupecyathus DEBRENNE, 1964
Specimen-type: Hupecyathus sphinctoides holotype, DEBRENNE, 1964, pl. 15,fig. 7
Systematics:
Order: PUTAPACYATHIDA Vologdin, 1961
Superfamily: HUPECYATHOIDEA Debrenne, Rozanov& A. Zhuravlev, 1990
Family: HUPECYATHIDAE Debrenne, Rozanov& A. Zhuravlev, 1990