TaxNo: 1795Maeneceras biferum nuntio
| Suborder: |
Tornoceratina
|
| Superfamily: |
Praeglyphioceratoidea
|
| Family: |
Sporadoceratidae
|
| Genus: |
Maeneceras
|
| NomSpecies: |
biferum
|
| Species: | nuntio |
| Qualifier: | ss |
| Author: |
Becker 1993,p.307
|
| Lower Boundary: |
UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
|
| Upper Boundary: |
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|