TaxNo: 1949Platyclymenia (Platyclymenia) alterna
| Suborder: |
Clymeniina
|
| Superfamily: |
Clymenioidea
|
| Family: |
Platyclymeniidae
|
| Genus: |
Platyclymenia
|
| Subgenus: |
Platyclymenia
|
| Species: | alterna |
| Qualifier: | ss |
| Author: |
Jenkins 1968,p.543
|
| Lower Boundary: |
UD3B--UD3C:(delphinus Zone base) [14,55], 368 million years
|
| Upper Boundary: |
UD4A--UD4B: dunkeri Zone base [15,55], 366.8 million years
|