| Suborder: |
Gonioclymeniina
|
| Superfamily: |
Gonioclymenioidea
|
| Family: |
Gonioclymeniidae
|
| Subfamily: |
Gonioclymeniinae
|
| Genus: |
Sphenoclymenia?
|
| Species: | trullata* |
| Qualifier: | sn |
| Author: |
Richter 1848,p.35
|
| Lower Boundary: |
UD4C--UD5A:serpent.--Cl.laevigata[16,75], 365.6 million years
|
| Upper Boundary: |
UD6E--UD6F:Cym.nigra--A.prorsum [19,40], 360 million years
|