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1st Author:
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Ruan, Yiping 
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2nd Author:
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3rd Author:
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Year:
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1978 | 
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Title:
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The Zonation of Devonian Ammonoids in China. | 
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Reference:
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Nanjing Inst. Geol. Palaeont. Acad. Sinica, pap. int. symp. Devonian system, 4: 1-5; Beijing. | 
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Keywords:
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Zonation Devon.Ammonoids China | 
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Link:
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