†subfamily Theonellinae von Lendenfeld 1904 (demosponge)
Demospongiae - Tetralithistida - Theonellidae
Parent taxon: Theonellidae according to R. M. Finks et al. 2004
Sister taxa: Acrochordoniinae, Pachycorynea, Phymaplectiinae, Rhopalospongia, Verrucodesma, Zitteleus
Subtaxa: Colossolacis Discodermia Leiophyllum Placoscytus Racodiscula Rhoptrum Stellettites Theonella
Type: Theonella
Ecology: stationary epifaunal suspension feeder
Distribution: