Suborder:
|
Goniatitina
|
Superfamily:
|
Dimorphoceratoidea
|
Family:
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Girtyoceratidae
|
Subfamily:
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Sudeticeratinae
|
Genus:
|
Sudeticeras
|
NomSpecies:
|
varians
|
Species:
|
varians |
Qualifier:
|
ss |
Author:
|
Bisat 1950,p.18
|
Lower Boundary:
|
Visean--Namurian/Serpukhovian [VIS--NAM], 326.4 million years
|
Upper Boundary:
|
DER lowest E1--E1 alpha, 326 million years
|