Ozaki, K. 1939. On a New Species of Lower Carboniferous Echinoida from Hunan, South China. Jubilee Publication in the Commemoration of Professor H. Yabe, M.I.A. Sixtieth Birthday 1, 563-567.
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Ozaki, K.
1939
On a New Species of Lower Carboniferous Echinoida from Hunan, South China. Jubilee Publication in the Commemoration of Professor H