TaxNo: 6017Genus Syngastrioceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Gastrioceratoidea
|
| Family: |
Glaphyritidae
|
| Subfamily: |
Glaphyritinae
|
| Genus: | Syngastrioceras |
| Qualifier: | ge |
| Author: |
Librovitch 1938,p.81
|
| Lower Boundary: |
Visean--Namurian/Serpukhovian [VIS--NAM], 326.4 million years
|
| Upper Boundary: |
U Atokan--Desmoinesian [ATO--DES], 308.6 million years
|