| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: | Eogonioloboceratidae |
| Qualifier: | fa |
| Author: |
Ruzhencev & Bog. 1978,p.83
|
| Lower Boundary: |
Up.Visean Goniatites BZ base [up.VIS], 333.5 million years
|
| Upper Boundary: |
CNG Qixu 15--16, 313 million years
|
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