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Suborder:
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Goniatitina 
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| 
Superfamily:
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Gastrioceratoidea 
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| 
Family:
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Reticuloceratidae 
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Subfamily:
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Reticuloceratinae 
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| 
Genus:
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Agastrioceras | 
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Qualifier:
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ge | 
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Author:
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	Schmidt 1938,p.120	 
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| 
Lower Boundary:
 | 
RUS Nm2b3--Nm2c1,Bilinguites-Cancelloc.G, 314.8 million years
 
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| 
Upper Boundary:
 | 
Langsettian--Duckmantian, Westphal.A--B, 311.3 million years
 
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