TaxNo: 6936Subfamily Gleboceratinae
| Suborder: |
Goniatitina
|
| Superfamily: |
Thalassoceratoidea
|
| Family: |
Thalassoceratidae
|
| Subfamily: | Gleboceratinae |
| Qualifier: | fy |
| Author: |
Kullmann nomen nudum
|
| Lower Boundary: |
U Desmoinesian--Missourian [DES--MIS], 306.5 million years
|
| Upper Boundary: |
Kasimovian--Gzhelian [KAS--GZE], 303.9 million years
|