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Suborder:
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Tornoceratina 
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Superfamily:
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Prionoceratoidea 
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Family:
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Prionoceratidae 
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Subfamily:
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Prionoceratinae 
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Genus:
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Mimimitoceras 
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Species:
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biimpressum | 
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Qualifier:
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sn | 
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Author:
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	Schmidt 1924,p.118	 
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| 
Lower Boundary:
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UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
 
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| 
Upper Boundary:
 | 
UD6E--UD6F:Cym.nigra--A.prorsum  [19,40], 360 million years
 
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