TaxNo: 7512Eumorphoceras donbassicum
| Suborder: |
Goniatitina
|
| Superfamily: |
Dimorphoceratoidea
|
| Family: |
Girtyoceratidae
|
| Subfamily: |
Girtyoceratinae
|
| Genus: |
Eumorphoceras
|
| Species: | donbassicum |
| Qualifier: | ss |
| Author: |
Astachova, T.V. & Popov, A.V. 1979
|
| Lower Boundary: |
GBY E1b -- E1c; DER E1 alpha -- E1 beta, 325 million years
|
| Upper Boundary: |
GBY E1c--E2a1 (Crav.malham.--cowling.), 324 million years
|