TaxNo: 5650Genus Cycloclymenia
| Suborder: |
Tornoceratina
|
| Superfamily: |
Dimeroceratoidea
|
| Family: |
Phenacoceratidae
|
| Genus: | Cycloclymenia |
| Qualifier: | ge |
| Author: |
Hyatt 1884,p.314
|
| Lower Boundary: |
UD5A--UD5B: ornata Zone base [17,10], 364.8 million years
|
| Upper Boundary: |
UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
|