†Protokionophyllum Vasilyuk & Polyakova 1986

Vasilyuk & Polyakova 1986. [Development of Coelenterata on the borders of Early and Middle Carboniferous in Donets Basin.] Sokolov, B.S.[Ed]. [Phanerozoic reefs and corals of the USSR.], Nauka, Moscow, 1986: 74-76. Chapter pagination: 74-76