TaxNo: 6737Family Yakutoceratidae
| Suborder: |
Goniatitina
|
| Superfamily: |
Schistoceratoidea
|
| Family: | Yakutoceratidae |
| Qualifier: | fs |
| Author: |
Librovitch 1968,p.159
|
| Valid: |
Orulganitidae Ruzhentsev,1965 [TAX5380] |
| Lower Boundary: |
RUS Branner./Gastr.--Diabol./Winslow. GZ, 311.7 million years
|
| Upper Boundary: |
Diabol./Winsl--Paralego./Eowellerites GZ, 309.5 million years
|