LOCULICYATHINA Zhuravleva, 1955: Cup modular (pseudocolonies formed by interparietal budding) or rarely solitary; intervallum with pseudosepta; synapticulae and plate tabulae may be present.
LOCULICYATHIDAE Zhuravleva, 1954: Inner wall with simple pores.
EREMITACYATHIDAE Debrenne, 1992: Inner wall with canals.
SAKHACYATHIDAE Debrenne & Zhuravlev, 1990: Inner wall with simple pores.
CHANKACYATHIDAE Yakovlev, 1959: Inner wall with simple pores.
TCHOJACYATHIDAE Debrenne & Zhuravlev, 1992: Inner wall with canals.