†class Regulares Vologdin 1937 (sponge)
Parent taxon: Archaeocyatha according to R. K. Bambach et al. 2007
Sister taxa: Adaecyathus, Cryptaporocyathus, Irregulares, Ramuscyathus
Subtaxa: Acanthinocyathida, Ajacicyathida, Capsulocyathida, Clathricyathellus, Monocyathida, Pilodicoscinus, Siderocyathus, Tabulacyathida, Tumulocyathellus
Ecology: stationary intermediate-level epifaunal suspension feeder