TaxNo: 5791Genus Pernoceras
| Suborder: |
Tornoceratina
|
| Superfamily: |
Tornoceratoidea
|
| Family: |
Tornoceratidae
|
| Subfamily: |
Aulatornoceratinae
|
| Genus: | Pernoceras |
| Qualifier: | ge |
| Author: |
Schindewolf 1922,p.188
|
| Lower Boundary: |
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|
| Upper Boundary: |
UD3B--UD3C:(delphinus Zone base) [14,55], 368 million years
|