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†Protactinoceras Chen & Qi 1979
urn:lsid:organismnames.com:name:108379
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12
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†Protactinoceras Chen & Qi 1979
Chen & Qi 1979. Late Cambrian cephalopods of north China - Plectronocerida, Protactinocerida (ord. nov.) and Yanhecerida (ord. nov.). Acta Palaeontologica Sinica, 18(1) 1979: 1-24