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†Opetiopsis Guo 1983
urn:lsid:organismnames.com:name:512330
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176
†Opetiopsis Guo 1983
Names
1
Guo 1983. On two new nonmarine Gastropoda genera from the Early Pleistocene in Nihewan region of Yangyuan, Hebei. Transactions of the Chinese Society of Malacology, No. 1 1983: 175-179