TaxNo: 7100Yakutoceras birandensis
| Suborder: |
Goniatitina
|
| Superfamily: |
Schistoceratoidea
|
| Family: |
Orulganitidae
|
| Genus: |
Yakutoceras
|
| Species: | birandensis |
| Qualifier: | ss |
| Author: |
Sobolev 1998,p.23
|
| Lower Boundary: |
RUS Nm2c2 top;Biling./Canc.--Bran./Gast., 313 million years
|
| Upper Boundary: |
RUS Branner./Gastr.--Diabol./Winslow. GZ, 311.7 million years
|