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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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Clymeniidae 
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Genus:
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Kosmoclymenia | 
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Qualifier:
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ge | 
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Author:
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	Schindewolf 1949,p.69	 
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| 
Lower Boundary:
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UD4C--UD5A:serpent.--Cl.laevigata[16,75], 365.6 million years
 
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| 
Upper Boundary:
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Devonian--Carboniferous Boundary   [DCB], 359.2 million years
 
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