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Dicoelosia

The shell of this brachiopod has a characteristic bilobed, near-triangular outline, with a strongly convex pedicles valve and less convex brachial valve. The hinge line is of variable width but is generally short. The interarea (between the valves) is medium size, with an open groove for passage of the pedicle. Numerous fine ribs diverge near the front of the shell.
HABITAT Dicoelosia was attached to bryozoans and shelly fragments in shallow to mid-depths. .