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†Helosphaeridium rarum Lu 1987
urn:lsid:organismnames.com:name:588238
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93
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†Helosphaeridium rarum Lu 1987
Lu 1987. Acritarchs from the Dawan Formation (Arenigian) of Huanghuachang in Yichang, western Hubei. Acta Micropalaeontologica Sinica, 4(1) 1987: 87-102