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Suborder:
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Goniatitina 
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| 
Superfamily:
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Neoglyphioceratoidea  
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| 
Family:
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Cravenoceratidae 
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| 
Subfamily:
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Cravenoceratinae 
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| 
Genus:
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Emstites | 
| 
Qualifier:
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ge | 
| 
Author:
 | 
	Korn 1988,p.140	 
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| 
Lower Boundary:
 | 
DER Go gamma 1-2,liethens.base,P2c base, 327.8 million years
 
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| 
Upper Boundary:
 | 
Pendleian--Arnsbergian        [PND--ARN], 324 million years
 
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