Anthozoa - Stauriida - Petalaxidae

Parent taxon: Petalaxidae according to D. Hill 1981

Sister taxa: Antheria, Cystolonsdaleia, Ivanovia, Lithostrotionella, Lytvophyllum, Omaniphyllum, Paralithostrotion, Petalaxis, Protoivanovia

Subtaxa: none

Ecology: stationary epifaunal suspension feeder