TaxNo: 6802Shengoceras primitivum
| Suborder: |
Goniatitina
|
| Superfamily: |
Cycloloboidea
|
| Family: |
Cyclolobidae
|
| Subfamily: |
Kufengoceratinae
|
| Genus: |
Shengoceras
|
| Species: | primitivum |
| Qualifier: | ss |
| Author: |
Leonova 2002,p.S91
|
| Lower Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|
| Upper Boundary: |
Capitanian--Wuchiapingian [CAP--DZH], 260.4 million years
|