TaxNo: 5820Family Phenacoceratidae
| Suborder: |
Tornoceratina
|
| Superfamily: |
Dimeroceratoidea
|
| Family: | Phenacoceratidae |
| Qualifier: | fa |
| Author: |
Wedekind 1918,p.131
|
| Lower Boundary: |
UD5A--UD5B: ornata Zone base [17,10], 364.8 million years
|
| Upper Boundary: |
UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
|