†family Columnariidae Nicholson 1879 (horn coral)
Parent taxon: Columnariina according to D. Hill 1981
Sister taxa: Acervulariidae, Chonophyllidae, Disphyllidae, Lonsdaleiidae, Phillipsastreidae
Subtaxa: Circumtextiphyllum, Columnaria, Planetophyllum, Spasskyella
Ecology: stationary epifaunal suspension feeder