TaxNo: 635Cyrtoclymenia tetragona
| Suborder: |
Clymeniina
|
| Superfamily: |
Cyrtoclymenioidea
|
| Family: |
Cyrtoclymeniidae
|
| Genus: |
Cyrtoclymenia
|
| Species: | tetragona |
| Qualifier: | ss |
| Author: |
Schmidt 1924,p.127
|
| Lower Boundary: |
UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
|
| Upper Boundary: |
UD6E--UD6F:Cym.nigra--A.prorsum [19,40], 360 million years
|