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Suborder:
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Goniatitina 
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| 
Superfamily:
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Pericycloidea 
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| 
Family:
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Muensteroceratidae 
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| 
Genus:
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Terektytes | 
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Qualifier:
 | 
ge | 
| 
Author:
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	Librovitch 1957,p.263	 
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| 
Lower Boundary:
 | 
KAK Terekty Beds base, 350 million years
 
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| 
Upper Boundary:
 | 
IRL Lower Limestone top, 345.3 million years
 
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