TaxNo: 5773Family Tornoceratidae
| Suborder: |
Tornoceratina
|
| Superfamily: |
Tornoceratoidea
|
| Family: | Tornoceratidae |
| Qualifier: | fa |
| Author: |
Arthaber 1911,p.175
|
| Lower Boundary: |
australis--kockelianus Zone [04,80], 393.8 million years
|
| Upper Boundary: |
UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
|