A key aiding in the identification of specimens can be found here.
Click here to see a full colour image of Terebratulina retusa, the most abundant British Brachiopod. (383k)
These pages are based on "British Brachiopods" by C.H.C. Brunton & G.B. Curry published by the Linnean Society of London and Academic Press (Synopses of the British Fauna, 17, 1979, 64pp; ISBN 0-12-137960-4).