TaxNo: 1946Paratornoceras clarkei
| Suborder: |
Tornoceratina
|
| Superfamily: |
Dimeroceratoidea
|
| Family: |
Dimeroceratidae
|
| Genus: |
Paratornoceras
|
| Species: | clarkei |
| Qualifier: | ss |
| Author: |
Delépine 1935,p.212
|
| Lower Boundary: |
UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
|
| Upper Boundary: |
UD3B--UD3C:(delphinus Zone base) [14,55], 368 million years
|