| 
Suborder:
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Tornoceratina 
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| 
Superfamily:
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Prionoceratoidea 
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| 
Family:
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Prionoceratidae 
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| 
Subfamily:
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Prionoceratinae 
 | 
| 
Genus:
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Rectimitoceras 
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| 
Species:
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crassistriatus | 
| 
Qualifier:
 | 
sn | 
| 
Author:
 | 
	Gümbel 1862,p.310	 
 | 
| 
Lower Boundary:
 | 
UD4C--UD5A:serpent.--Cl.laevigata[16,75], 365.6 million years
 
 | 
| 
Upper Boundary:
 | 
UD6B--UD6C1 Kamptoclym. endogona base, 362.4 million years
 
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