Gymnolaemata are a class of Bryozoans. Gymnolaemata are sessile, mostly marine organisms and grow on the surfaces of rocks, kelp, and in some cases on animals^{[citation needed]}, like fish. Zooids are cylindrical or flattened. The lophophore is protruded by action of muscles pulling on the frontal wall. This order includes the majority of living bryozoan species.

Gymnolaemata
Flustra foliacea
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Bryozoa
Class:	GymnolaemataAllman, 1856 Orders See text Orders edit Source:[1] Cheilostomata Busk, 1852 Ctenostomatida Busk, 1852 External links edit   Media related to Gymnolaemata at Wikimedia Commons   Data related to Gymnolaemata at Wikispecies References edit ^ "Gymnolaemata". www.itis.gov. Retrieved 21 January 2022.