TaxNo: 5040Martoceras kermense
| Suborder: |
Goniatitina
|
| Superfamily: |
Cycloloboidea
|
| Family: |
Vidrioceratidae
|
| Genus: |
Martoceras
|
| Species: | kermense |
| Qualifier: | sn |
| Author: |
Tumanskaia 1931,p.92
|
| Lower Boundary: |
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|
| Upper Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|