TaxNo: 3298Prothalassoceras welleri+
| Suborder: |
Goniatitina
|
| Superfamily: |
Thalassoceratoidea
|
| Family: |
Thalassoceratidae
|
| Subfamily: |
Thalassoceratinae
|
| Genus: |
Prothalassoceras
|
| Species: | welleri+ |
| Qualifier: | ss |
| Author: |
Böse 1919,p.104
|
| Lower Boundary: |
UTX Lower Hueco--Upper Hueco Lst., 284.4 million years
|
| Upper Boundary: |
UTX Upper Hueco Lst. top, 270.6 million years
|