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Suborder:
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Anarcestina 
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Superfamily:
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Anarcestoidea 
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Family:
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Anarcestidae 
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Subfamily:
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Werneroceratinae 
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Genus:
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Atlantoceras 
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Species:
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tataense+ | 
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Qualifier:
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ss | 
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Author:
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	Bensaïd 1974,p.100	 
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| 
Lower Boundary:
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mid.--up.varcus Zone             [17,00], 389 million years
 
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| 
Upper Boundary:
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MAR one alpha 1-- one alpha 2 of Bensaid, 388 million years
 
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