(Agelasida) (Agelasida) is a biological order of the phylum Porifera (Sponges) and class Demospongiae.
Agelasidae
Astroscleridae
Agelasida
Astrophorida
Chondrosida
Dendroceratida
Dictyoceratida
Hadromerida
Halichondrida
Halisarcida
Haplosclerida
Lithistida
Poecilosclerida
Spirophorida
Verongida
Verticillitida