Order Pennatulacea (sea pen)
Parent taxon: Anthozoa according to J. J. Sepkoski 2002
Sister taxa: Actiniae, Actiniaria, Actinotheca, Antipatharia, Archaeotrypa, Bolboporites, Cambrophyllum, Cambrotrypa, Coelenteratella, Cothonion, Cysticyathus, Decaphyllum, Hexacorallia, Kitakamiphyllum, Lipopora, Numidiaphyllum, Octocorallia, Oekentorpia, Protoaulopora, Roselletona, Rugosa, Spongarium, Stolonifera, Strobilasma, Tabulata, Zoantharia
Subtaxa: Glyptosceptron, Pachysceptron, Palaeosceptron, Pavonaria, Prographularia, Pteroeides, Thaumoptilon, Virgularia
Ecology: stationary intermediate-level epifaunal microcarnivore