TaxNo: 2055Girtyoceras sp.
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: |
Girtyoceras
|
| Species: | sp. |
| Qualifier: | in |
| Author: |
div. authors
|
| Lower Boundary: |
Up.Visean Goniatites BZ base [up.VIS], 333.5 million years
|
| Upper Boundary: |
Visean--Namurian/Serpukhovian [VIS--NAM], 326.4 million years
|