TaxNo: 4959Stacheoceras beishanense
| Suborder: |
Goniatitina
|
| Superfamily: |
Cycloloboidea
|
| Family: |
Vidrioceratidae
|
| Genus: |
Stacheoceras
|
| Species: | beishanense |
| Qualifier: | ss |
| Author: |
Gao 1983,p.475
|
| Lower Boundary: |
Sakmarian--Artinskian [SAK--ART], 284.4 million years
|
| Upper Boundary: |
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|