| 
Suborder:
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Goniatitina 
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| 
Superfamily:
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Pericycloidea 
 | 
| 
Family:
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Pericyclidae 
 | 
| 
Subfamily:
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Ammonellipsitinae 
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| 
Genus:
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Ammonellipsites  
 | 
| 
Species:
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clitheroensis | 
| 
Qualifier:
 | 
ss | 
| 
Author:
 | 
	Riley 1996,p.70	 
 | 
| 
Lower Boundary:
 | 
GBY lower--upper Chadian           [CHD], 345.3 million years
 
 | 
| 
Upper Boundary:
 | 
Chadian--Arundian [V1a--V1b]  [CHD--ARU], 344.5 million years
 
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