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Suborder:
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Prolecanitina 
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| 
Superfamily:
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Medlicottioidea 
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| 
Family:
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Pronoritidae 
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| 
Subfamily:
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Pronoritinae 
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| 
Genus:
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Megapronorites 
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| 
Species:
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itimensis | 
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Qualifier:
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ss | 
| 
Author:
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	Korn & Ebbighausen in Klug et al. 2006,p.52	 
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| 
Lower Boundary:
 | 
RUS Nm1a1 base, Hypergon.-Ferganoc. GZ, 327.8 million years
 
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| 
Upper Boundary:
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RUS Nm1a1--Nm1a2 (P.cloudi--Do.miranda), 327.4 million years
 
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