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Suborder:
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Goniatitina 
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Superfamily:
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Goniatitoidea 
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Family:
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Goniatitidae 
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Genus:
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Neogoniatites 
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Species:
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xinjiangensis | 
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Qualifier:
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sn | 
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Author:
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	Wang 1983,p.524	 
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Lower Boundary:
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DER Go gamma 1-2,liethens.base,P2c base, 327.8 million years
 
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Upper Boundary:
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Pendleian--Arnsbergian        [PND--ARN], 324 million years
 
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