TaxNo: 4695Biarmiceras subtumarense
| Suborder: |
Goniatitina
|
| Superfamily: |
Popanoceratoidea
|
| Family: |
Mongoloceratidae
|
| Genus: |
Biarmiceras
|
| Species: | subtumarense |
| Qualifier: | ss |
| Author: |
Andrianov 1985,p.158
|
| Lower Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|
| Upper Boundary: |
Wordian--Capitanian (Midian) [WOR--CAP], 265.8 million years
|