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Suborder:
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Anarcestina 
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| 
Superfamily:
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Triainoceratoidea 
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Family:
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Pharciceratidae 
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| 
Genus:
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Stenopharciceras 
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| 
Species:
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applanatum | 
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Qualifier:
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ss | 
| 
Author:
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	Bensaïd 1974,p.111	 
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| 
Lower Boundary:
 | 
MAR one alpha 1-- one alpha 2 of Bensaid, 388 million years
 
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| 
Upper Boundary:
 | 
Givetian--Frasnian            [GIV--FRS], 385.3 million years
 
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