TaxNo: 7083Genus Biarmiceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Popanoceratoidea
|
| Family: |
Mongoloceratidae
|
| Genus: | Biarmiceras |
| Qualifier: | ge |
| Author: |
Leonova,Kutygin,Shilovskii 2005,p.479
|
| Lower Boundary: |
UTX Kungurian/Leonardian base, 275.6 million years
|
| Upper Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|