TaxNo: 1027Maeneceras spirifer
| Suborder: |
Tornoceratina
|
| Superfamily: |
Praeglyphioceratoidea
|
| Family: |
Sporadoceratidae
|
| Genus: |
Maeneceras
|
| Species: | spirifer |
| Qualifier: | sy |
| Author: |
Lange 1929,p.43
|
| Valid: | Sporadoceras rotundum Wedekind 1908 |
| Lower Boundary: |
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|
| Upper Boundary: |
UD3B--UD3C:(delphinus Zone base) [14,55], 368 million years
|