†family Palaeocyclidae Dybowski 1873 (horn coral)
Parent taxon: Cystiphyllida according to D. Hill 1981
Sister taxa: Cystiphyllidae, Digonophyllidae, Fletcheriidae, Goniophyllidae, Holmophyllidae, Tryplasmatidae
Subtaxa: Bojocyclus, Palaeocyclus, Primitophyllum, Rhabdocyclus
Ecology: stationary epifaunal suspension feeder