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†Parapycnactis He 1989
urn:lsid:organismnames.com:name:849653
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166
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†Parapycnactis He 1989
He 1989. The Silurian stratigraphy and paleontology in Erlangshan district, Sichuan. Description of selected fossils. (7) Rugosa. Bulletin of the Chengdu Institute of Geology and Mineral Resources, No. 11 1989: 166-167, 197