What are the subgroups of sponges?

Phylum Porifera
Class Calcarea
Order Clathrinida
Order Leucosoleniida
Order Sycettida
Order Leucettida
Class Hexactinellida
Class Demospongiae
Order Haplosclerida
Order Poecilosclerida
Class Sclerospongiae

With about 5000 species known across the world. Sponges are primarily
marine, but around 150 species live in fresh water. Sponges have
cellular-level organization, meaning that that their cells are
specialized so that different cells perform different functions, but
similar cells are not organized into tissues and bodies are a sort of
loose aggregation of different kinds of cells. This is the simplest
kind of cellular organization found among parazoans.