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Suborder:
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Goniatitina 
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| 
Superfamily:
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Marathonitoidea 
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Family:
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Marathonitidae 
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| 
Genus:
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Promarathonites 
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| 
Species:
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moorei | 
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Qualifier:
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ss | 
| 
Author:
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	Plummer & Scott 1937,p.132	 
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| 
Lower Boundary:
 | 
UTX Brad Fm.--Caddo Creek Fm., 304.7 million years
 
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| 
Upper Boundary:
 | 
UTX Caddo Creek Fm.--Graham Fm., 304.3 million years
 
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