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Suborder:
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Goniatitina 
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| 
Superfamily:
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Dimorphoceratoidea 
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| 
Family:
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Dimorphoceratidae 
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| 
Subfamily:
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Glyphiolobinae 
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| 
Genus:
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Glyphiolobus 
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| 
Species:
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marioni | 
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Qualifier:
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ss | 
| 
Author:
 | 
	Moore 1939,p.120	 
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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:
 | 
DER chalic.--up.Go gamma2,Emstit.novalis, 327.2 million years
 
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