†order Agelasida Verrill 1907 (demosponge)
Parent taxon: Ceractinomorpha according to R. M. Finks et al. 2004
Sister taxa: Burgundiidae, Dendroceratida, Halichondrida, Halisarcida, Medfraspongia, Sigmatosclerophorida, Vaceletida
Subtaxa: Aphrosalpingidae, Astroscleridae, Auriculospongiidae, Catenispongiidae, Cliefdenellidae, Columnocoelia, Cryptocoeliidae, Exotubispongiidae, Fissispongiidae, Girtyocoeliidae, Glomocystospongiidae, Guadalupiidae, Intrasporeocoeliidae, Madonia, Maeandrostiidae, Olangocoeliidae, Palermocoeliidae, Parastylothalamiidae, Pharetrospongiidae, Preperonidellidae, Radiotrabeculoporidae, Sestrostomellidae, Sphaeropontiidae, Spicidae, Stellispongiellidae, Tataouinella, Thaumastocoeliidae, Virgolidae
Ecology: stationary epifaunal suspension feeder