TaxNo: 5363Genus Martoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Cycloloboidea
|
| Family: |
Vidrioceratidae
|
| Genus: | Martoceras |
| Qualifier: | ge |
| Author: |
Tumanskaia 1938,p.106
|
| Lower Boundary: |
RIT Somohole beds base, 299 million years
|
| Upper Boundary: |
TAP upper Bus--Ter beds top, 268 million years
|