†family Polycoeliidae Fromentel 1861 (horn coral)
Parent taxon: Plerophyllina according to D. Hill 1981
Sister taxa: Adamanophyllidae, Anisophyllidae, Endotheciidae, Lophophyllidae, Pentaphyllidae, Plerophyllidae, Timorphyllidae, Verbeekiellidae
Subtaxa: Endotheciinae, Maichelasma, Polycoeliinae, Prosmiliinae, Sochkineophyllum, Tachylasmatinae
Ecology: stationary epifaunal suspension feeder