From Kazlev & White, 2002 [“The Palaeos Site”]

<==o †Archaeocyatha Vologdin, 1937 [Cyathospongia Okulitch, 1935; Pleospongia Okulitch, 1935]Hetairacyathida [incertae sedis]
        †REGULARESMonocyathidaCapsulocyathidaAjacicyathidaIRREGULARESThalassocyathidaArchaeocyathidaKazakhstanicyathida

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