TaxNo: 5337Genus Promarathonites
| Suborder: |
Goniatitina
|
| Superfamily: |
Marathonitoidea
|
| Family: |
Marathonitidae
|
| Genus: | Promarathonites |
| Qualifier: | ge |
| Author: |
Popov 1992,p.58
|
| Lower Boundary: |
RUS lower--upper Zhigulian, 305.9 million years
|
| Upper Boundary: |
RUS lower--upper Gzhelian, 301 million years
|