| 
Suborder:
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Clymeniina 
 | 
| 
Superfamily:
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Clymenioidea 
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| 
Family:
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Clymeniidae 
 | 
| 
Genus:
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Muessenbiaergia 
 | 
| 
Species:
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lecanoides | 
| 
Qualifier:
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sy | 
| 
Author:
 | 
	Ruan 1981,p.129	 
 | 
| 
Valid:
 | 
Muessenbiaergia galeata (Wedekind 1914) | 
| 
Lower Boundary:
 | 
UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
 
 | 
| 
Upper Boundary:
 | 
UD6B--UD6C1 Kamptoclym. endogona base, 362.4 million years
 
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