TaxNo: 1136Sphaeromanticoceras backlundi
| Suborder: |
Anarcestina
|
| Superfamily: |
Beloceratoidea
|
| Family: |
Gephuroceratidae
|
| Subfamily: |
Gephuroceratinae
|
| Genus: |
Sphaeromanticoceras
|
| Species: | backlundi |
| Qualifier: | ss |
| Author: |
Holzapfel 1899,p.25
|
| 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
|