| 
1st Author:
 | 
Huang, Zhan-xing 
 | 
| 
2nd Author:
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Li, Xiao-quan 
 | 
| 
3rd Author:
 | 
Zhou, Zuren 
 | 
| 
Year:
 | 
1991 | 
| 
Title:
 | 
Advances in biostratigraphy of Permian ammonoid bearing formations from Guangxi. | 
| 
Reference:
 | 
Acta Paleontologica Sinica, 30 (1): 42-50, fig.1, tab.1; Beijing. | 
| 
Keywords:
 | 
Advances in biostratigraphy | 
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Link:
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