TaxNo: 916Raymondiceras simplex+
| Suborder: |
Tornoceratina
|
| Superfamily: |
Dimeroceratoidea
|
| Family: |
Cheiloceratidae
|
| Genus: |
Raymondiceras
|
| Species: | simplex+ |
| Qualifier: | ss |
| Author: |
Raymond 1909,p.152
|
| Lower Boundary: |
UD2H--UD2I:(mamilliferum base) [12,90], 370 million years
|
| Upper Boundary: |
UD4A--UD4B: dunkeri Zone base [15,55], 366.8 million years
|