Suborder:
|
Goniatitina
|
Superfamily:
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Dimorphoceratoidea
|
Family:
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Girtyoceratidae
|
Subfamily:
|
Girtyoceratinae
|
Genus:
|
Torulites |
Qualifier:
|
ge |
Author:
|
Kuzina & Yatskov 1987,p.106
|
Lower Boundary:
|
DER Pe delta, nasutus Z. base [09.25], 334.5 million years
|
Upper Boundary:
|
Up.Visean Goniatites BZ base [up.VIS], 333.5 million years
|