Qian Y., Bengtson S. (1989). Palaeontology and Biostratigraphy of the Early Cambrian Meishucunian Stage in Yunnan Province, South China. Fossils and Strata. 24: 1–156.
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Qian Y., Bengtson S.
1989
Palaeontology and Biostratigraphy of the Early Cambrian Meishucunian Stage in Yunnan Province, South China