Order Sycettida Bidder 1898 (calcareous sponge)
Parent taxon: Calcaronea according to R. M. Finks et al. 2004
Sister taxa: Baerida, Leucosolenida, Lithonida, Sphaerocoeliida, Stellispongiida
Subtaxa: Grantiidae Leuconiidae
Ecology: stationary epifaunal suspension feeder
Distribution: