Subclass Calcaronea Bidder 1898 (calcareous sponge)
Parent taxon: Calcarea according to R. K. Bambach et al. 2007
Sister taxa: Aporata, Aspiculata, Aulocyclus, Aulospongia, Blastulospongia, Calcinea, Clifdenella, Cystothalamiidae, Epeudea, Faniathalamia, Fistulisponga, Follicalena, Gaspespongia, Khalfinaea, Lamellispongia, Nibionia, Paruvanella, Pharetronida, Phragmocoelia, Polysiphonella, Praethalamopora, Pseudodictyocoelia, Radiothalamos, Rahbahthalmia, Rigbyspongia, Scribroporella, Sebargasia, Vascothalmia, Wanella, Zigzagella
Subtaxa: Baerida, Leuconia, Leucosolenida, Lithonida, Protoleucon, Protosycon, Sphaerocoeliida, Stellispongiida, Sycettida
Ecology: stationary epifaunal suspension feeder