TaxNo: 4605Genus Sphenoceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Goniatitoidea
|
| Family: |
Goniatitidae
|
| Genus: | Sphenoceras |
| Qualifier: | gy |
| Author: |
Foord 1903,p.218
|
| Valid: |
Goniatites de Haan 1825,p.39 TAX4603 |
| Lower Boundary: |
Up.Visean Goniatites BZ base [up.VIS], 333.5 million years
|
| Upper Boundary: |
DER Go beta striatus--Go beta falcatus, 329.4 million years
|