1851 Clymenia quadrifera McCoy: 487.
| Suborder: |
Clymeniina
|
| Superfamily: |
Cyrtoclymenioidea
|
| Family: |
Cymaclymeniidae
|
| Genus: |
Cymaclymenia
|
| Species: | quadrifera |
| Qualifier: | ss |
| Author: |
McCoy 1851,p.487
|
| Lower Boundary: |
UD4C--UD5A:serpent.--Cl.laevigata[16,75], 365.6 million years
|
| Upper Boundary: |
UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
|