†family Cnemidiastridae Schrammen 1924 (demosponge)
Demospongiae - Spirosclerophorida - Cnemidiastridae
Parent taxon: Azoricoidea according to R. M. Finks et al. 2004
Sister taxon: Azoricidae
Subtaxa: Cnemidiastrum Cnemopeltia Corallidium Cucumaltina
Type: Cnemidiastrum
Ecology: stationary epifaunal suspension feeder
Distribution: