TaxNo: 5426Genus Sphaeromanticoceras
| Suborder: |
Anarcestina
|
| Superfamily: |
Beloceratoidea
|
| Family: |
Gephuroceratidae
|
| Subfamily: |
Gephuroceratinae
|
| Genus: | Sphaeromanticoceras |
| Qualifier: | ge |
| Author: |
Clausen 1971,p.197
|
| Lower Boundary: |
UD1E--UD1F:P.luth.--P.alveolatus [02,30], 381.1 million years
|
| Upper Boundary: |
UD1L--UD2A:(frechi Zone base) [06,10], 374.5 million years
|