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Suborder:
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Clymeniina 
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Superfamily:
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Clymenioidea 
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Family:
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Glatziellidae | 
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Qualifier:
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fa | 
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Author:
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	Schindewolf 1928,p.157	 
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| 
Lower Boundary:
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UD6A2--UD6B:Balvia(M.) lens base [18,20], 363.2 million years
 
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| 
Upper Boundary:
 | 
UD6E--UD6F:Cym.nigra--A.prorsum  [19,40], 360 million years
 
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