†family Cylindrophymatidae Schrammen 1936 (demosponge)
Demospongiae - Tetralithistida - Cylindrophymatidae
Parent taxon: Didymmorina according to R. M. Finks et al. 2004
Sister taxa: none
Subtaxa: Chonophyma Coscinodiscus Cylindrophyma Linochone Melonella
Type: Cylindrophyma
Ecology: stationary epifaunal suspension feeder
Distribution: