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†Pronajaceras Lai & Xu 1983
urn:lsid:organismnames.com:name:399904
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†Pronajaceras Lai & Xu 1983
Lai & Xu 1983. Subdivision and correlation on the Ordovician in the eastern Yangtze Gorges, China. Bulletin of the Yichang Institute of Geology and Mineral Resources, No. 6 1983: 1-68