Name some sponges

Hexactinellida, Calcarea, Demospongiae, andSclerospongiae

Technically, however, the Sclerospongiae are not considered sponges. They are very similar, but they are not the same. Like bats and birds who have both evolved the ability to fly but are not the same types of animals, Slerospongiae have evolved and became very similar to sponges, but they are not sponges.