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Suborder:
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Agoniatitina 
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Superfamily:
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Agoniatitoidea 
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Family:
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Agoniatitidae 
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Genus:
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Agoniatites 
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Species:
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expansus | 
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Qualifier:
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sh | 
| 
Author:
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	Vanuxem 1842,p.146	 
 | 
| 
Valid:
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Agoniatites vanuxemi Hall,1879,p.434 | 
| 
Lower Boundary:
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Eifel.--Givetian [dm96:08,20] [EIF--GIV], 391.8 million years
 
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| 
Upper Boundary:
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MD2A--MD2B: undul.--molarium Z.  [13,00], 390.6 million years
 
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