TaxNo: 1966Girtyoceras aeulkei
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: |
Girtyoceras
|
| Species: | aeulkei |
| Qualifier: | ss |
| Author: |
Korn 1988,p.57
|
| Lower Boundary: |
DER Go gamma poststriat.--eisenbergensis, 328 million years
|
| Upper Boundary: |
DER Go gamma 1-2,liethens.base,P2c base, 327.8 million years
|