TaxNo: 2830Prothalassoceras jaikense
| Suborder: |
Goniatitina
|
| Superfamily: |
Thalassoceratoidea
|
| Family: |
Thalassoceratidae
|
| Subfamily: |
Thalassoceratinae
|
| Genus: |
Prothalassoceras
|
| Species: | jaikense |
| Qualifier: | ss |
| Author: |
Ruzhencev 1950,p.111
|
| Lower Boundary: |
RUS lower--upper Zhigulian, 305.9 million years
|
| Upper Boundary: |
Gzhelian--Asselian [C--P], 299 million years
|