Cyclopyge (trilobite) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Cyclopyge (trilobite)" in English language version.

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  • Zhou Zhiyi; Zhou Zhiqiang (2009). "Ordovician cyclopygid trilobites from the Pagoda Formation of southwestern Shaanxi, China". AAP Memoir. 37: 87–101. Archived from the original on 20 June 2013. Retrieved 7 June 2013.

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  • Zhou Zhiyi; Zhou Zhiqiang (2009). "Ordovician cyclopygid trilobites from the Pagoda Formation of southwestern Shaanxi, China". AAP Memoir. 37: 87–101. Archived from the original on 20 June 2013. Retrieved 7 June 2013.