TaxNo: 690Discoclymenia cornwallensis
| Suborder: |
Tornoceratina
|
| Superfamily: |
Tornoceratoidea
|
| Family: |
Posttornoceratidae
|
| Genus: |
Discoclymenia
|
| Species: | cornwallensis |
| Qualifier: | ss |
| Author: |
Selwood 1960,p.174
|
| Lower Boundary: |
UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
|
| Upper Boundary: |
UD6E--UD6F:Cym.nigra--A.prorsum [19,40], 360 million years
|