
Gymnolaemata is a class of the phylum Bryozoa. Gymnolaemata typically live under seawater and grow on surfaces of rocks, kelps, and even in some cases, on animal species like fish. They are mostly marine bryozoans with cylindrical or flattened zoöids. The lophophore is protruded by action of muscles pulling on frontal wall. This order includes th...
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http://en.wikipedia.org/wiki/Gymnolaemata

• (n. pl.) An order of Bryozoa, having no epistome.
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http://thinkexist.com/dictionary/meaning/gymnolaemata/

(from the article `moss animal`) ...proximal portions thin walled, distal portions funnellike and separated by extensive calcification; Ordovician to Triassic; about 130 genera.Class ... In the gymnolaemates, in which the zooids frequently are flattened, budding occurs as transverse septa form and cut off parts of the primary zooid ... ...
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http://www.britannica.com/eb/a-z/g/85
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