TaxNo: 220Cunitoceras? shumardianum
| Suborder: |
Tornoceratina
|
| Superfamily: |
Prionoceratoidea
|
| Family: |
Prionoceratidae
|
| Subfamily: |
Prionoceratinae
|
| Genus: |
Cunitoceras?
|
| Species: | shumardianum |
| Qualifier: | ss |
| Author: |
Winchell 1862,p.324
|
| Lower Boundary: |
UMI Marshall Sdst.II base, 353 million years
|
| Upper Boundary: |
UMI Marshall Sdst.II top, 351 million years
|