TaxNo: 6889Genus Bartzschiceras
| Suborder: |
Tornoceratina
|
| Superfamily: |
Karagandoceratoidea
|
| Family: |
Karagandoceratidae
|
| Genus: | Bartzschiceras |
| Qualifier: | ge |
| Author: |
Becker & Weyer 2004,p.26
|
| Lower Boundary: |
DER Ps. westfalicus--Paragattend. patens, 358 million years
|
| Upper Boundary: |
low.Tournais.--mid.Tournais. [Tn1--Tn2], 357.5 million years
|