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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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Genus:
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Triimitoceras 
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Species:
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amplisellatum | 
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Qualifier:
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ss | 
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Author:
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	Korn, Ebbighausen, Bockwinkel 2010, p. 20	 
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Lower Boundary:
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mid.Tournais.--up.Tournaisian [Tn2--Tn3], 353 million years
 
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| 
Upper Boundary:
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Pericyclus--Fasciperic./Ammonellips.BZ, 348.5 million years
 
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