Suborder:
|
Goniatitina
|
Superfamily:
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Schistoceratoidea
|
Family:
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Welleritidae
|
Subfamily:
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Axinolobinae |
Qualifier:
|
fs |
Author:
|
Ruzhencev 1962,p.388
|
Lower Boundary:
|
Bashkirian--Moscovian [BSH--MOS], 311.7 million years
|
Upper Boundary:
|
Diabol./Winsl--Paralego./Eowellerites GZ, 309.5 million years
|