Suborder:
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Goniatitina
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Superfamily:
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Dimorphoceratoidea
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Family:
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Girtyoceratidae
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Subfamily:
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Girtyoceratinae
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Genus:
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Girtyoceras
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Species:
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luscinia |
Qualifier:
|
ss |
Author:
|
Korn 1988,p.52
|
Lower Boundary:
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Holkerian--Asbian [V3a--V3b] [HLK--ASB], 336.5 million years
|
Upper Boundary:
|
Asbian--Brigantian [P1a--P1b] [ASB--BRI], 332 million years
|