TaxNo: 6898Hasselbachia gourara
| Suborder: |
Tornoceratina
|
| Superfamily: |
Prionoceratoidea
|
| Family: |
Gattendorfiidae
|
| Genus: |
Hasselbachia
|
| Species: | gourara |
| Qualifier: | ss |
| Author: |
Ebbighausen et.al. 2004,p.140
|
| Lower Boundary: |
low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years
|
| Upper Boundary: |
Kahla event base (unnamed interval), 358 million years
|