most brachiopods possess teath and sockets, and have shells made out of calcium carbonate. each valve shows bilateral symmetry, sizes range from 5mm to 8cm. the biggest valve is called the pedical valve. this contains a pedicle which attaches the brachiopod to the floor. the brachial valve contains supports for the lophophore. 
these are benthonic,sessile, marine organisms enclosed between two unequal-sized valves. they are still alive today, but are greatly reduced in number.
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