Suborder:
|
Goniatitina
|
Superfamily:
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Neoglyphioceratoidea
|
Family:
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Ferganoceratidae |
Qualifier:
|
fa |
Author:
|
Ruzhencev 1960,p.203
|
Lower Boundary:
|
RUS Nm1a1 base, Hypergon.-Ferganoc. GZ, 327.8 million years
|
Upper Boundary:
|
Visean--Namurian/Serpukhovian [VIS--NAM], 326.4 million years
|