†subclass Discomedusae Haeckel 1880 (jellyfish)
Parent taxon: Scyphozoa according to H. Van Iten et al. 2014
Sister taxa: Adesmoconularia, Anabaritida, Australoconularia, Circonularia, Climacoconus, Conularina, Coronatida, Corumbellidae, Garraconularia, Hexangulaconularia, Holoconularia, Lithorhizostomatida, Olivooidae, Paleoscyphozoa, Reticulaconularia, Scyphomedusae, Tasmanoconularia, Tirasiana
Subtaxa: Rhizostomeae Semaeostomeae