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†Umbilicus Duan & Cao 1989
urn:lsid:organismnames.com:name:856835
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134
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†Umbilicus Duan & Cao 1989
Duan & Cao 1989. A new discovery of Precambrian vase-shaped microfossils in the eastern Yangtze gorges of Hubei Province. Bulletin of the Tianjin Institute of Geology and Mineral Resources, No. 21 1989: 129-148