TaxNo: 7429Girtyoceras hamiltonense
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: |
Girtyoceras
|
| Species: | hamiltonense |
| Qualifier: | ss |
| Author: |
Korn, D & Titus, A 2011, p. 150
|
| Lower Boundary: |
DER fimbriatus--spirifer/striatus, 330.7 million years
|
| Upper Boundary: |
DER Go beta falcatus--Go beta gracilis, 329.1 million years
|