Suborder:
|
Tornoceratina
|
Superfamily:
|
Tornoceratoidea
|
Family:
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Posttornoceratidae
|
Subfamily:
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Posttornoceratinae
|
Genus:
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Posttornoceras
|
Species:
|
fallax |
Qualifier:
|
ss |
Author:
|
Korn 2002,p.459
|
Lower Boundary:
|
UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
|
Upper Boundary:
|
UD3C--UD4A:(annulata Zone base) [14,90], 367.6 million years
|