TaxNo: 918Sporadoceras rotundiforme
| Suborder: |
Tornoceratina
|
| Superfamily: |
Praeglyphioceratoidea
|
| Family: |
Sporadoceratidae
|
| Genus: |
Sporadoceras
|
| Species: | rotundiforme |
| Qualifier: | ss |
| Author: |
Bogoslovsky 1971,p.130
|
| Lower Boundary: |
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|
| Upper Boundary: |
UD3B--UD3C:(delphinus Zone base) [14,55], 368 million years
|