Feng W.M., Y. Qian, and Z.-Q. Rong. (1994). Study of Monoplacophora and Gastropoda from the Lower Cambrian Xinji Formation in Ye Xian, Henan. Acta Micropalaeontologica Sinica. 11(1):1-19.
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Feng W.M., Y. Qian, and Z.-Q. Rong
1994
Study of Monoplacophora and Gastropoda from the Lower Cambrian Xinji Formation in Ye Xian, Henan