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Lingula

This relatively small inarticulate brachiopod has a thin shell, with both valves gently convex and tongue shaped in outline. The beak of the pedicle valve has a triangular groove for the supporting pedicle. Internally, there are no teeth or sockets. The ornament consists of fine growth lines only. HABITAT Like all recent lingulids, the fossil Lingula probably lived in vertical burrows in intertidal areas. .