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Suborder:
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Prolecanitina 
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Superfamily:
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Prolecanitoidea 
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| 
Family:
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Prolecanitidae 
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| 
Subfamily:
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Protocanitinae 
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| 
Genus:
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Merocanites 
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Species:
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similis | 
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Qualifier:
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ss | 
| 
Author:
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	Crick 1895,p.80	 
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| 
Lower Boundary:
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DER Pe delta, nasutus Z. base  [09.25], 334.5 million years
 
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| 
Upper Boundary:
 | 
Up.Visean  Goniatites BZ base [up.VIS], 333.5 million years
 
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