Parent taxon: Cnidaria according to E. Kayal et al. 2013
See also Edwards 1988, López-Pérez 2005, Sarr et al. 2024, Sepkoski 2002, Squires 1984, Squires 1987, Squires 1988 and Squires 1999
Sister taxa: Annulatubus, Cambroctoconus, Cambrorhytium, Cloudinidae, Crassitubus, Erniettamorpha, Escumasia, Haootia, Hydroconozoa, Inaria, Liaoningia, Mackenziidae, Mawsonites, Medusae, Medusozoa, Melanofurcata, Melanosteus, Melanostylus, Myxozoa, Priscapennamarina, Pywackia, Quadratitubus, Ramellina, Ramitubus, Sekwitubulus, Sinocyclocyclicus, Spatangopsis, Syringophyllum, Thaumoptilon, Vauzutsubua, Zolotytsia
Subtaxa: Actiniae Actinotheca Cispusella Cladoporium Conularia kaibabensis Cysticyathus Decaphyllum Heliolitida Hexacorallia Ingordium Kitakamiphyllum Numidiaphyllum Octocorallia Oculina antiqua Oekentorpia Osculius Paiutiida Pyxidophyllum Roselletona Ruscum Spongarium Stolonifera Strobilasma Tablulaconida Tabulata Zoantharia
Ecology: stationary intermediate-level epifaunal microcarnivore