Platidia, , Logan, 1979

Hansen, Jesper, 2024, Brachiopods of the Norwegian fauna northern North Atlantic and Arctic, with a focus on, Fauna norvegica 43, pp. 12-68 : 46

Genus Platidia Costa, 1852

Argiope (Cistella) cuneata – Gray (1853), p. 114.

Terebratula (Argiope) cuneata – Lovell (1861), p. 185.

Argiope pera – Brusina (1866), p. 47.

Megathyris (Cistella) cuneata – Dall (1870), p. 146.

Argiope barroisi Schulgin, 1885, p. 122 , pl. 8, fig. 4.

Argyrotheca cuneata – Dall (1900), p. 44.

Description: Shell gently to moderately ventribiconvex. Outline transverse and semicircular with acuminate cardinal extremities to equidimensional subangular, occasionally with weakly indented front. Both dorsal and ventral valves with weak median furrow. Hinge line wide and straight. Ventral umbo typically high and straight. Anterior commissure rectimarginate to unisulcate. Ornament of approximately 8–16 coarse, radiating, broadly rounded ribs. Shell white, red or grey, and typically red between ribs. Large round to triangular pedicle