Author: RONG JIA-YU & YANG XUE-CHANG
Title: Silurian spiriferoids from southwest China with special reference to their stratigraphic significance.
Description: 1978. Acta Palaeont. Sinica 17-4; pp. 357–384 in Chinese with English summary pp. 383-84, 14 fig. 3 plts. h.t. Orig. extract, stapled, very good.

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