TaxNo: 4010Genus Sulcogirtyoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: | Sulcogirtyoceras |
| Qualifier: | ge |
| Author: |
Ruzhencev 1960,p.204
|
| Lower Boundary: |
DER Go beta falcatus--Go beta gracilis, 329.1 million years
|
| Upper Boundary: |
UAR upper Ruddel--Batesville, 327.6 million years
|