TaxNo: 4431Glassoceras normani+
| Suborder: |
Goniatitina
|
| Superfamily: |
Cycloloboidea
|
| Family: |
Vidrioceratidae
|
| Genus: |
Glassoceras
|
| Species: | normani+ |
| Qualifier: | ss |
| Author: |
Miller & Furnish 1957,p.1055
|
| Lower Boundary: |
Kungurian/Leonardian--Roadian [KUN--ROA], 270.6 million years
|
| Upper Boundary: |
Roadian--Wordian (Murgabian) [ROA--WOR], 268 million years
|