TaxNo: 3111Schistoceras smithi
| Suborder: |
Goniatitina
|
| Superfamily: |
Schistoceratoidea
|
| Family: |
Schistoceratidae
|
| Genus: |
Schistoceras
|
| Species: | smithi |
| Qualifier: | ss |
| Author: |
Böse 1919,p.93
|
| Lower Boundary: |
UTX upper-uppermost Gaptank, 300 million years
|
| Upper Boundary: |
UTX Gaptank Fm. top, 299 million years
|