TaxNo: 4604Genus Glyphioceras
| Suborder: |
Goniatitina
|
| Superfamily: |
Goniatitoidea
|
| Family: |
Goniatitidae
|
| Genus: | Glyphioceras |
| Qualifier: | gy |
| Author: |
Hyatt 1884,p.328
|
| Valid: | Goniatites de Haan 1825,p.39 |
| 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
|