Freshwater bryozoan with lophophore extendedA brachidium, a lophophore support, visible between the valves of the Lower Jurassic (Pliensbachian) brachiopod Spiriferina rostrata (35 x 30 mm)
The lophophore is the characteristic feeding organ of four major groups of animals: the Brachiopoda, Bryozoa, Entoprocta, and Phoronida.[1] All lophophores are found in aquatic organisms.