| 
Suborder:
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Goniatitina 
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| 
Superfamily:
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Neoicoceratoidea 
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| 
Family:
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Metalegoceratidae 
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| 
Subfamily:
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Eothinitinae 
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| 
Genus:
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Eothinites 
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| 
Species:
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usvensis | 
| 
Qualifier:
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ss | 
| 
Author:
 | 
	Bogoslovskaya 1962,p.77	 
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| 
Lower Boundary:
 | 
Aktastinian--Baigendzhinian   [AKT--BAI], 282 million years
 
 | 
| 
Upper Boundary:
 | 
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
 
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