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†Pachyrotoceras Zhao, Liang & Zheng 1978
urn:lsid:organismnames.com:name:241304
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lvimlimi
...
†Pachyrotoceras Zhao, Liang & Zheng 1978
Zhao, Liang & Zheng 1978. Late Permian cephalopods of south China. Palaeontologia Sinica Series B, No. 12 1978: i-iv, 1-194