TaxNo: 6079Genus Heminautilinus
| Suborder: |
Tornoceratina
|
| Superfamily: |
Praeglyphioceratoidea
|
| Family: |
Sporadoceratidae
|
| Genus: | Heminautilinus |
| Qualifier: | gn |
| Author: |
Hyatt 1884,p.310
|
| Valid: | Maeneceras Hyatt,1884 ? |
| Lower Boundary: |
UD2A--UD2B:(verneuili Zone base) [07,75], 374 million years
|
| Upper Boundary: |
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|