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Yiyuan, Qian. Late late Cambrian trilobites from the Tangcun Formation of Jingxian, Southern Anhui. Qian Yiyuan. In Paleontologia Cathayana: An English Journal of Palaeontology and Stratigraphy , Paleontologia Cathayana: An English Journal of Palaeontology and Stratigraphy. 32 s. : .Number 2
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