| 
Suborder:
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Goniatitina 
 | 
| 
Superfamily:
 | 
Marathonitoidea 
 | 
| 
Family:
 | 
Marathonitidae 
 | 
| 
Genus:
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Subkargalites 
 | 
| 
Species:
 | 
sp. | 
| 
Qualifier:
 | 
in | 
| 
Author:
 | 
	div. authors 	 
 | 
| 
Lower Boundary:
 | 
UOK Nellie Bly Fm. base, 305.9 million years
 
 | 
| 
Upper Boundary:
 | 
UOK Nellie Bly Fm.,Skiatook--Ochelata Gr, 305.6 million years
 
 |