Phylum Porifera Class Calcarea Order Calcinia Order Calcaronia Class Hexactinellida Order Amphidiscophora Order Hexasterophora Class Demospongiae Order Homoscleromorpha Order Tetractinomorpha Order Ceractinomorpha Phylum Porifera Class Calcarea Order Clathrinida Order Leucosoleniida Order Sycettida Order Leucettida Class Hexactinellida Class Demospongiae Order Haplosclerida Order Poecilosclerida Class Sclerospongiae