TaxNo: 6905Subfamily Aulatornoceratinae
| Suborder: |
Tornoceratina
|
| Superfamily: |
Tornoceratoidea
|
| Family: |
Tornoceratidae
|
| Subfamily: | Aulatornoceratinae |
| Qualifier: | fs |
| Author: |
Becker 1993,p.211
|
| Lower Boundary: |
mid.--up.varcus Zone [17,00], 389 million years
|
| Upper Boundary: |
UD3C--UD4A:(annulata Zone base) [14,90], 367.6 million years
|