Cooper, G. A. (1957). Tertiary and Pleistocene brachiopods of Okinawa, Ryukyu Islands. United States Geological Survey, Professional Paper. 314-A:1–20, pl. 1–5.
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Cooper, G. A.
1957
Tertiary and Pleistocene brachiopods of Okinawa, Ryukyu Islands
United States Geological Survey, Professional Paper