Chen, M.; Liu, K. (1986). The geological significance of newly discovered microfossils from the upper Sinian (Doushantuo age) phosphorites. Scientia Geologica Sinica. 1: 46-52.
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Chen, M.; Liu, K.
1986
The geological significance of newly discovered microfossils from the upper Sinian (Doushantuo age) phosphorites