TaxNo: 7095Paraschistoceras optimum aff.
| Suborder: |
Goniatitina
|
| Superfamily: |
Schistoceratoidea
|
| Family: |
Schistoceratidae
|
| Genus: |
Paraschistoceras
|
| Species: | optimum aff. |
| Qualifier: | af |
| Author: |
Popov 1999,p.85
|
| Lower Boundary: |
Kasimovian--Gzhelian [KAS--GZE], 303.9 million years
|
| Upper Boundary: |
RUS lower--upper Gzhelian, 301 million years
|